Deve loping
ith the web
w
Christian Heilmann – Domainconvergence, Toronto, Canada – August 2009

The end is near

Build it and they will come

Back when this was all
fields...

The web2.0 revolution

Bringing the noise

Oh! Shiny thing!

If you can’t fight them...

Spreading and collecting

CMS

CMS
Tags, Comments, Connections, Embeds

Bringing the web to our
sites...

http://chatcatcher.com/

http://sideline.yahoo.com

http://cotweet.com/

Digging into the web of
data.

h"p://www.flickr.com/photos/clspeace/162336973/

h"p://www.flickr.com/photos/tudor/2981410947/

h"p://www.flickr.com/photos/lumachrome/2140368742/

h"p://www.flickr.com/photos/carey?lden/115435226/
h"p://www.flickr.com/photos/carey?lden/115435226/

http://pipes.yahoo.com
h"p://www.flickr.com/photos/carey?lden/115435226/

h"p://www.flickr.com/photos/carey?lden/115435226/
h"p://www.flickr.com/photos/axio/2346342672/

The Yahoo Query Language, or short
YQL is a unified interface language
to the web.
http://developer.yahoo.com/yql/

select {what} from
{service} where
{condition}

Say you want kittens on your site
(who doesn’t?)
select * from
flickr.photos.search
where text="kitten"

Say you only want 5 kittens
select * from
flickr.photos.search
where text="kitten"
limit 5

Say you only want 5 kittens

Nice, but where can you get this?

http://query.yahooapis.com/v1/
public/yql?q={query}
&format={format}

Output formats are XML or JSON.
JSON means you can use the data in
JavaScript.

http://query.yahooapis.com/v1/public/yql?q=select
%20*%20from flickr.photos.search%20where%20text=
%22kitten%22limit%205&format=json&callback=meow

Re-mixing the web.

Guess what this does:
select * from flickr.photos.info
where photo_id in (select id from
flickr.photos.search where woe_id
in (select woeid from geo.places
where text='london,uk') and
license=4)

Find London, England
select * from flickr.photos.info
where photo_id in (select id from
flickr.photos.search where woe_id
in (select woeid from geo.places
where text='london,uk') and
license=4)

Find photos from there.
select * from flickr.photos.info
where photo_id in (select id from
flickr.photos.search where woe_id
in (select woeid from geo.places
where text='london,uk') and
license=4)

Get the info of for the photos
select * from flickr.photos.info
where photo_id in (select id from
flickr.photos.search where woe_id
in (select woeid from geo.places
where text='london,uk') and
license=4)

Make sure you are OK to use them!
select * from flickr.photos.info
where photo_id in (select id from
flickr.photos.search where woe_id
in (select woeid from geo.places
where text='london,uk') and
license=4)

Display them using free widgets
http://isithackday.com/hacks/cantine/
index.php?loc=covent+garden
http://isithackday.com/hacks/cantine/

http://isithackday.com/hacks/frankfurt

APIs

APIs
http://search.twitter.com/trends/current.json

API Issues

Conjuring content?

Content Issues

Content Issues

UGC issues

Placement

Legal issues

Demos and resources

http://developer.yahoo.com

Thus you can create niche
search products.
http://keywordfinder.org/

http://developer.yahoo.com/yslow/

GeoMaker
Collaboration
http://icant.co.uk/geomaker/

http://blindsearch.fejus.com/

http://correlator.sandbox.yahoo.net/

http://developer-evangelism.com/web.php

http://www.amazon.de/Web-Development-
Solutions-Libraries-Services/dp/1590598067

Play nice!

http://www.colalife.org/

C h e e r s !
Christian Heilmann
http://wait-till-i.com
http://developer-evangelism.com
http://twitter.com/codepo8