1.
REST in peace Rome, March 5th 2011Licensed under CC license

2.
Agenda Rest in a nutshell ESI in a nutshell The uniform interface Pros/Cons Bad APIs ESI + REST ProblemsLicensed under CC license Rome, March 5th 2011

3.
Sorry for the ugly slide. There will be others. Really sorry.Licensed under CC license Rome, March 5th 2011

4.
Lets go!Licensed under CC license Rome, March 5th 2011

5.
Lets go back!Licensed under CC license Rome, March 5th 2011

6.
2000 Fieldings dissertation: REpresentational State Transfer http://www.ics.uci.edu/~fielding/pubs/dissertation/rest_arch_style.htmLicensed under CC license Rome, March 5th 2011

7.
REST in a nutshell:Licensed under CC license Rome, March 5th 2011

8.
REST in a nutshell: 1. Client <> ServerLicensed under CC license Rome, March 5th 2011

9.
REST in a nutshell: 2. StatelessLicensed under CC license Rome, March 5th 2011

10.
Recover and failover paradiseLicensed under CC license Rome, March 5th 2011

11.
What about the user session?Licensed under CC license Rome, March 5th 2011

12.
Must dieLicensed under CC license Rome, March 5th 2011

13.
What about the user cookies?Licensed under CC license Rome, March 5th 2011

14.
Should dieLicensed under CC license Rome, March 5th 2011

15.
Wondering why?Licensed under CC license Rome, March 5th 2011

16.
Wondering why? Send a cookie via FTP. http://www.google.it/search?sourceid=chrome&client=ubuntu&channel=cs&ie=UTF-8&q=ftp+cookies And http://www.ics.uci.edu/~fielding/pubs/dissertation/evaluation.htm#sec_6_3_4_2Licensed under CC license Rome, March 5th 2011

17.
REST in a nutshell: 3. CacheableLicensed under CC license Rome, March 5th 2011

18.
REST in a nutshell: When dealing with safe methods, the response should be able to tell the client, or whatever stands behind the request, how to cache it.Licensed under CC license Rome, March 5th 2011

19.
REST in a nutshell: 4. Layered systemLicensed under CC license Rome, March 5th 2011

20.
REST in a nutshell: 5. Uniform interfaceLicensed under CC license Rome, March 5th 2011

21.
Uniform interface hierarchic resource identification HTTP verbs to perform operations manipulation through representation HATEOASLicensed under CC license Rome, March 5th 2011

22.
Richardson maturity model hierarchic resource identification HTTP verbs to perform operations manipulation through representation HATEOAS Really well explained by Fowler: http://martinfowler. com/articles/richardsonMaturityModel.html#level0Licensed under CC license Rome, March 5th 2011

23.
Richardson maturity model mess hierarchic resource identification HTTP verbs to perform operations HATEOASLicensed under CC license Rome, March 5th 2011

24.
Richardson maturity model 0. mess hierarchic resource identification HTTP verbs to perform operations HATEOASLicensed under CC license Rome, March 5th 2011

25.
0 Using HTTPLicensed under CC license Rome, March 5th 2011

26.
Without giving a f***Licensed under CC license Rome, March 5th 2011

27.
Richardson maturity model 1. 0. mess hierarchic resource identification HTTP verbs to perform operations HATEOASLicensed under CC license Rome, March 5th 2011

28.
1 mytastyproduct.com/users mytastyproduct.com/users/1/licenses/4Licensed under CC license Rome, March 5th 2011

29.
Richardson maturity model 1. 0. mess hierarchic resource identification 2. HTTP verbs to perform operations HATEOASLicensed under CC license Rome, March 5th 2011

30.
2Licensed under CC license Rome, March 5th 2011

31.
Richardson maturity model 1. 0. mess hierarchic resource identification 2. HTTP verbs to perform operations 3. HATEOASLicensed under CC license Rome, March 5th 2011

32.
3. GOD http://www.slideshare.net/trilancer/why-hateoas-1547275Licensed under CC license Rome, March 5th 2011

33.
HyperlinksLicensed under CC license Rome, March 5th 2011

34.
Hypermedia formats http://amundsen.com/hypermedia/Licensed under CC license Rome, March 5th 2011

35.
Single entry pointLicensed under CC license Rome, March 5th 2011

36.
Uniform interface is interesting. Everyone seem to have its own RESTful "service". But no one seem to entirely implement a uniform interface.Licensed under CC license Rome, March 5th 2011

37.
Uniform interface is interesting. Everyone seem to have its own RESTful "service". But no one seem to entirely implement a uniform interface. That means... ...?Licensed under CC license Rome, March 5th 2011

38.
No RESTful stuffLicensed under CC license Rome, March 5th 2011

39.
But dont be too religious.Licensed under CC license Rome, March 5th 2011

40.
But dont be too religious.Cookies stuff included.REST gets raped everyday,get over it.Licensed under CC license Rome, March 5th 2011

41.
CounterorderLicensed under CC license Rome, March 5th 2011

42.
Lets be religious bout that!Licensed under CC license Rome, March 5th 2011

43.
Just for a couple minutes :)Licensed under CC license Rome, March 5th 2011

44.
API #failLicensed under CC license Rome, March 5th 2011

45.
Licensed under CC license Rome, March 5th 2011

46.
flickr.com/people/{user-id}Licensed under CC license Rome, March 5th 2011

47.
flickr.com/photos/{user-id}Licensed under CC license Rome, March 5th 2011

48.
flickr.com/photos/{user-id} flickr.com/users/{user-id}/photos/Licensed under CC license Rome, March 5th 2011

49.
flickr.photos.deleteLicensed under CC license Rome, March 5th 2011

50.
wow, a delete!Licensed under CC license Rome, March 5th 2011

51.
POSTLicensed under CC license Rome, March 5th 2011

52.
Is that even legal?Licensed under CC license Rome, March 5th 2011

53.
Licensed under CC license Rome, March 5th 2011

54.
GET /api.twitter.com/1/users/show.formatLicensed under CC license Rome, March 5th 2011

55.
GET /api.twitter.com/1/users/show.format GET /api.twitter.com/1/users/ HTTP Accept header: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.htmlLicensed under CC license Rome, March 5th 2011

56.
GET /api.twitter.com/1/users/search.format?query...Licensed under CC license Rome, March 5th 2011

57.
GET /api.twitter.com/1/users/search.format?query... GET /api.twitter.com/1/users?name=jackLicensed under CC license Rome, March 5th 2011

58.
Licensed under CC license Rome, March 5th 2011

59.
Only JSON responsesLicensed under CC license Rome, March 5th 2011

60.
JSON is evilLicensed under CC license Rome, March 5th 2011

61.
{ "date": "2011-01-01", "stock": "100", "price": "12" }Licensed under CC license Rome, March 5th 2011

62.
The business evolvesLicensed under CC license Rome, March 5th 2011

63.
{ "date": "2011-01-01", "stock": "100", "price": [ {"currency": "EUR", "amount": "12"}, {"currency": "USD", "amount": "10"} ] } Credits: http://twitter.com/#!/odracciLicensed under CC license Rome, March 5th 2011

64.
Yeah, client is brokenLicensed under CC license Rome, March 5th 2011

65.
No goodLicensed under CC license Rome, March 5th 2011

66.
BTW <xml...> <product...> <price currency="EUR">25</price> <price currency="USD">23</price> </product> </xml>Licensed under CC license Rome, March 5th 2011

67.
Well, getting back to...Licensed under CC license Rome, March 5th 2011

68.
Licensed under CC license Rome, March 5th 2011

69.
Create a new classhttp://<server>:[<port>]/class/<database>/<class-name>Licensed under CC license Rome, March 5th 2011

70.
Response?Licensed under CC license Rome, March 5th 2011

71.
HTTP/1.1 201 Created Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Date: Fri Feb 18 03:21:09 CET 2011 Content-Type: text/plain Server: OrientDB Server v.0.9.24 Connection: Keep-Alive Set-Cookie: OSESSIONID=OS12979956697985725150466358620636; Path=/; HttpOnly CONTENT-LENGTH: 221Licensed under CC license Rome, March 5th 2011

72.
CAN I HAZ HATEOAZ?Licensed under CC license Rome, March 5th 2011

73.
HTTP 201 Created Location /bla bla bla bla... http://en.wikipedia.org/wiki/HTTP_locationLicensed under CC license Rome, March 5th 2011

74.
I am really ashamed of having bothered you for 78 slides to say how to perform a GETLicensed under CC license Rome, March 5th 2011

75.
ESI in peace Rome, March 5th 2011Licensed under CC license Rome, March 5th 2011

76.
Edge Side Includes A de facto standard for bla bla bla...Licensed under CC license Rome, March 5th 2011

77.
Edge Side Includes A de facto standard for bla bla bla... Server side includes ( not SSI! ) usually handled by the architectures ESI processor. http://www.w3.org/TR/esi-lang http://www.w3.org/TR/edge-archLicensed under CC license Rome, March 5th 2011

78.
Include <esi:include src="http://codemotion.it/talks/1" />Licensed under CC license Rome, March 5th 2011

79.
Try/Catch<esi:try> <esi:attempt> <esi:comment text="The REST talk"/> <esi:include src="http://codemotion.it/talks/1" /> </esi:attempt>Licensed under CC license Rome, March 5th 2011

80.
Fallback<esi:try> <esi:attempt> <esi:comment text="The REST talk"/> <esi:include src="http://codemotion.it/talks/1" /> </esi:attempt> <esi:except> <esi:comment text="fallback"/> <p>epic fail</p> </esi:except></esi:try> Licensed under CC license Rome, March 5th 2011

81.
PitfallsLicensed under CC license Rome, March 5th 2011

82.
Pitfalls Processor configurationLicensed under CC license Rome, March 5th 2011

83.
Pitfalls Processor configuration Implementation of fallbacks for handling errorsLicensed under CC license Rome, March 5th 2011

84.
Pitfalls Processor configuration Implementation of fallbacks for handling errors it relies on the processor, which gains importance, for creating any single response ( not really true :-) )Licensed under CC license Rome, March 5th 2011

85.
ProsLicensed under CC license Rome, March 5th 2011

86.
ProsLicensed under CC license Performances Rome, March 5th 2011

87.
ProsEffective gateway cacheLicensed under CC license Rome, March 5th 2011

88.
Pros ScalabilityLicensed under CC license Rome, March 5th 2011

89.
Which leads us to...Licensed under CC license Rome, March 5th 2011

90.
REST+ESI in peace Rome, March 5th 2011Licensed under CC license Rome, March 5th 2011

91.
This is a responseLicensed under CC license Rome, March 5th 2011

92.
aggregating many resourcesLicensed under CC license Rome, March 5th 2011

93.
So heres a resource.Licensed under CC license Rome, March 5th 2011

94.
So heres a resource. Or, better, its representation.Licensed under CC license Rome, March 5th 2011

95.
Five minutes cache 2 days cacheLicensed under CC license Rome, March 5th 2011

96.
Lets write our own caching systemLicensed under CC license Rome, March 5th 2011

97.
because we need to cache differentresources with different expiring intervals odino@odino-phenom:~$ ab -n 1000 -c 10 http://127. 0.0.1/tmp/esi.php This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http: //www.apache.org/ Benchmarking 127.0.0.1 (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requestsLicensed under CC license Rome, March 5th 2011

98.
Hell no!Licensed under CC license Rome, March 5th 2011

99.
USE ESI and HTTP cacheLicensed under CC license Rome, March 5th 2011

100.
Understanding the web cache http://www.mnot.net/cache_docs/#WORK HTTP cache http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.htmlLicensed under CC license Rome, March 5th 2011

101.
Without a single LoCLicensed under CC license Rome, March 5th 2011

102.
ehm...Licensed under CC license Rome, March 5th 2011

103.
With a few LoCs, gotta admitLicensed under CC license Rome, March 5th 2011

104.
The ArchitectureLicensed under CC license Rome, March 5th 2011

105.
Client Reverse proxy / ESI processor Application DatabaseLicensed under CC license Rome, March 5th 2011

106.
No problems, uh?Licensed under CC license Rome, March 5th 2011

107.
HellLicensed under CC license no! Rome, March 5th 2011

108.
1. ComplexityLicensed under CC license Rome, March 5th 2011

109.
1. ComplexityResolved by your needsLicensed under CC license Rome, March 5th 2011

110.
2. CachingLicensed under CC license Rome, March 5th 2011

111.
2. Caching Resolved by the gateway cache aka your reverse proxy aka, most of the time, VarnishLicensed under CC license Rome, March 5th 2011

112.
You know Varnish, dont you?Licensed under CC license Rome, March 5th 2011

113.
Without varnish Concurrency Level: 10 Time taken for tests: 1.467 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 5476471 bytes HTML transferred: 5285280 bytes Requests per second: 681.69 [#/sec] (mean) Time per request: 14.670 [ms] (mean) Time per request: 1.467 [ms] (mean, across all concurrent requests) Transfer rate: 3645.73 [Kbytes/sec] receivedLicensed under CC license Rome, March 5th 2011

114.
With varnish Concurrency Level: 10 Time taken for tests: 0.179 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 5479938 bytes HTML transferred: 5288556 bytes Requests per second: 5587.65 [#/sec] (mean) Time per request: 1.790 [ms] (mean) Time per request: 0.179 [ms] (mean, across all concurrent requests) Transfer rate: 29902.34 [Kbytes/sec] receivedLicensed under CC license Rome, March 5th 2011

115.
AWESOME huh?Licensed under CC license Rome, March 5th 2011

116.
NO.Licensed under CC license Rome, March 5th 2011

117.
Wheres my HATEOAS, again?Licensed under CC license Rome, March 5th 2011

118.
Defining a request header in ESI <esi:environment> <esi:request_header name="Accept" value="text/vnd.odino.xhtml"/> </esi:environment>Licensed under CC license Rome, March 5th 2011

119.
Defining a request header in ESI <esi:environment> <esi:request_header name="Accept" value="text/vnd.odino.xhtml"/> </esi:environment> Content NegotiationLicensed under CC license Rome, March 5th 2011

120.
Awful supportLicensed under CC license Rome, March 5th 2011

121.
Client Reverse proxy ? ApplicationLicensed under CC license Rome, March 5th 2011

122.
Client Reverse proxy ESI processor ApplicationLicensed under CC license Rome, March 5th 2011

123.
Some freaking crazy people built a webserverLicensed under CC license Rome, March 5th 2011

124.
in PHPLicensed under CC license Rome, March 5th 2011

125.
with the RAD framework Symfony2 http://symfony-reloaded.org/ https://github.com/pminnieur/ServerBundleLicensed under CC license Rome, March 5th 2011

126.
That means you should be able to write your own reverse proxy acting as an ESI processor. I mean, if they were able to write a webserver...Licensed under CC license Rome, March 5th 2011

127.
in PHPLicensed under CC license Rome, March 5th 2011

128.
you have no excusesLicensed under CC license Rome, March 5th 2011

129.
But pleaseLicensed under CC license Rome, March 5th 2011

130.
Make it support all the ESI stuffLicensed under CC license Rome, March 5th 2011

131.
Not like Varnish http://www.varnish-cache.org/trac/wiki/ESIfeaturesLicensed under CC license Rome, March 5th 2011

132.
Extended content negotiationLicensed under CC license Rome, March 5th 2011

133.
text/vnd.xhtml+xml;profile=esi Chapter 8: http://www.rfc-editor.org/rfc/rfc3236.txtLicensed under CC license Rome, March 5th 2011

134.
Response to the proc text/vnd.xhtml+xml;profile=esi <head> .... </head> <body> <esi ... /> </body>Licensed under CC license Rome, March 5th 2011

135.
Profile is used because the browser wont render such this kind of formats:Licensed under CC license Rome, March 5th 2011

136.
text/vnd.xhesiml+xmlLicensed under CC license Rome, March 5th 2011

137.
Response for fragments text/vnd.xhesiml+xml <div> .... </div> <span> <esi ... /> </span>Licensed under CC license Rome, March 5th 2011

138.
Client Reverse proxy Supporting all the ESI ESI processor specification http://www.w3.org/TR/esi-lang ApplicationLicensed under CC license Rome, March 5th 2011

139.
Overhead?Licensed under CC license Rome, March 5th 2011

140.
Is that a problem?Licensed under CC license Rome, March 5th 2011

141.
Client Reverse proxy Supporting all the ESI ESI processor specification http://www.w3.org/TR/esi-lang ApplicationLicensed under CC license Rome, March 5th 2011

142.
Varnish is there for a reasonLicensed under CC license Rome, March 5th 2011

143.
Because at thatLicensed under CC license Rome, March 5th 2011

144.
Varnish ROCKS!Licensed under CC license Rome, March 5th 2011

145.
Ready to include a resource with our custom hypermedia format <esi:environment> <esi:request_header name="Accept" value="text/vnd.blablabla"/> </esi:environment>Licensed under CC license Rome, March 5th 2011

146.
But dont screw everything forgetting the remaining parts of HATEOAS, like hypermedia relations. http://www.slideshare.net/adorepump/hateoas-the-confusing-bit-from-rest http://tech.groups.yahoo.com/group/rest-discuss/message/17011Licensed under CC license Rome, March 5th 2011

147.
So, with aLicensed under CC license Rome, March 5th 2011

148.
LayeredLicensed under CC license Rome, March 5th 2011

149.
CacheableLicensed under CC license Rome, March 5th 2011

150.
StatelessLicensed under CC license Rome, March 5th 2011

151.
Driven byLicensed under CC license Rome, March 5th 2011

152.
Uniform interfaceLicensed under CC license Rome, March 5th 2011

153.
and hypermediaLicensed under CC license Rome, March 5th 2011

154.
architectureLicensed under CC license Rome, March 5th 2011

155.
OhLicensed under CC license dear Rome, March 5th 2011

156.
Richardson maturity model level 3Licensed under CC license Rome, March 5th 2011

157.
Again...Licensed under CC license Rome, March 5th 2011

158.
ProsLicensed under CC license Performances Rome, March 5th 2011

159.
Pros ScalabilityLicensed under CC license Rome, March 5th 2011

160.
Pros DurabilityLicensed under CC license Rome, March 5th 2011

161.
Where to REST in peace Rome, March 5th 2011Licensed under CC license Rome, March 5th 2011

162.
any webserviceLicensed under CC license Rome, March 5th 2011

163.
machine to machineLicensed under CC license Rome, March 5th 2011

164.
Be the next AtomPub http://bitworking.org/projects/atom/rfc5023.htmlLicensed under CC license Rome, March 5th 2011

165.
Actually...Licensed under CC license Rome, March 5th 2011

166.
Licensed under CC license Rome, March 5th 2011

167.
"REST is software design on the scale of decades: every detail is intended to promote software longevity and independent evolution. Many of the constraints are directly opposed to short-term efficiency. Unfortunately, people are fairly good at short-term design, and usually awful at long-term design. " Roy FieldingLicensed under CC license Rome, March 5th 2011

168.
Put a bit of REST everywhereLicensed under CC license Rome, March 5th 2011

169.
http://articles.sfgate.com/2011-02-20/opinion/28613184_1_news-network-cable-and-satellite-website http://tech.groups.yahoo.com/group/rest-discuss/message/17370 +2.500% trafficLicensed under CC license Rome, March 5th 2011

170.
Rules of good designLicensed under CC license Rome, March 5th 2011

171.
No need to be religiousLicensed under CC license Rome, March 5th 2011

172.
This talk sucks in peace Rome, March 5th 2011Licensed under CC license Rome, March 5th 2011

173.
1Licensed under CC license Rome, March 5th 2011

174.
Agile development vs RESTLicensed under CC license Rome, March 5th 2011

175.
Agile development vs REST mmmmmmmmmmmm................ http://www.odino.org/288/restful-and-agile-love-hate-loveLicensed under CC license Rome, March 5th 2011

176.
2Licensed under CC license Rome, March 5th 2011

177.
Browsers suckLicensed under CC license Rome, March 5th 2011

178.
HTTP authentication http://www.odino.org/238/mockups-of-web-authentication-the-rest-rescueLicensed under CC license Rome, March 5th 2011

179.
3Licensed under CC license Rome, March 5th 2011

180.
HTML5Licensed under CC license Rome, March 5th 2011

181.
Everybody loves itLicensed under CC license Rome, March 5th 2011

182.
I HATE HTML5Licensed under CC license Rome, March 5th 2011

183.
Original specification: "support for PUT and DELETE verbs"Licensed under CC license Rome, March 5th 2011

184.
People went insaneLicensed under CC license Rome, March 5th 2011

185.
Current status?Licensed under CC license Rome, March 5th 2011

186.
RemovedLicensed under CC license Rome, March 5th 2011

187.
There are no use casesLicensed under CC license Rome, March 5th 2011

188.
They saidLicensed under CC license Rome, March 5th 2011

189.
http://www.w3.org/TR/2010/WD-html5-diff-20101019/#changes-2010-06-24Licensed under CC license Rome, March 5th 2011

190.
Then people got madLicensed under CC license Rome, March 5th 2011

191.
A disclaimer in peace Rome, March 5th 2011Licensed under CC license Rome, March 5th 2011

192.
JSON does not suck. At all. http://www.slideshare.net/Wombert/xml-versus-the-new-kids-on-the-block-phpbnl11-20110129Licensed under CC license Rome, March 5th 2011

193.
Varnish does not suck. At all.Licensed under CC license Rome, March 5th 2011

194.
HTML5 does not suck. At all. http://www.html5rocks.com/Licensed under CC license Rome, March 5th 2011

195.
OrientDB rocks Ask Luca Garulli, he might be in this room http://www.orientechnologies.com/Licensed under CC license Rome, March 5th 2011

196.
Everything is a tradeoffLicensed under CC license Rome, March 5th 2011

197.
Hints?Licensed under CC license Rome, March 5th 2011

198.
David Zuelke knows bestLicensed under CC license Rome, March 5th 2011

199.
Design HTTP interfaces and RESTful webserviceshttp://www.slideshare.net/Wombert/designing-http-interfaces-and-restful-web-services-phpbnl11-20110128Licensed under CC license Rome, March 5th 2011

200.
Others know bestLicensed under CC license Rome, March 5th 2011

201.
300 RESTful boring slides :) http://www.slideshare.net/guilhermecaelum/rest-in-practice REST as the DBMS of the web http://www.slideshare.net/dnene/rest-representational-state-transfer-explainedLicensed under CC license Rome, March 5th 2011

202.
amazon.itLicensed under CC license Rome, March 5th 2011

203.
Thanks! Alessandro Nadalin odino.org

204.
@_odino_ #codemotionLicensed under CC license Rome, March 5th 2011

205.
12 - 14 May, Verona

206.
Credits http://www.flickr.com/photos/larachris/16564077/sizes/o/in/photostream/ http://www.flickr.com/photos/ashatenbroeke/4367373081/sizes/z/in/photostream/ http://www.flickr.com/photos/yourdon/3140270189/sizes/l/in/photostream/ http://www.flickr.com/photos/jox1989/4964706072/sizes/l/in/photostream/ http://www.flickr.com/photos/brainfg/168506259/sizes/o/in/photostream/ http://www.flickr.com/photos/norte_it/3897091546/sizes/o/in/photostream/ http://www.zdnet.com/blog/service-oriented/soap-versus-rest-a-matter-of-style/3568http://www.flickr.com/photos/turtlemom_nancy/2046347762/sizes/l/in/photostream/ http://www.flickr.com/photos/juanpg/3333385784/sizes/z/in/photostream/ http://www.flickr.com/photos/congvo/301678287/sizes/l/in/photostream/ http://www.flickr.com/photos/ihasb33r/2573196546/sizes/z/in/photostream/ http://www.flickr.com/photos/martin_heigan/4544138976/sizes/o/in/photostream/ http://www.flickr.com/photos/cknara/4195099999/sizes/o/in/photostream/ http://www.flickr.com/photos/1080p/3076529265/sizes/l/in/photostream/ http://www.flickr.com/photos/adamrice/280300202/sizes/l/in/photostream/ http://www.flickr.com/photos/tomer_a/541411897/sizes/o/in/photostream/ http://www.flickr.com/photos/subpra/4514008262/sizes/l/in/photostream/ http://www.flickr.com/photos/lippincott/2539720043/sizes/l/in/photostream/ http://www.flickr.com/photos/rawryder/5086090931/sizes/l/in/photostream/ http://www.flickr.com/photos/robboudon/5312731161/sizes/l/in/photostream/ http://www.flickr.com/photos/bc-burnslibrary/4158243488/sizes/o/in/photostream/http://www.flickr.com/photos/13606325@N08/2416993706/sizes/o/in/photostream/ http://www.flickr.com/photos/neothezion/5135841069/sizes/l/in/photostream/ http://www.flickr.com/photos/planetschwa/2494067809/ http://www.flickr.com/photos/thomasthomas/258931782/