This document provides guidance and resources for participating in a hack day event focused on coding and innovation. It encourages participants to focus on fixing something they use every day, building something for their own use, or making the world a better place. It recommends finding existing APIs and services to combine in new ways within a 24 hour timeframe. Yahoo and other sites are identified as having useful open data and tools like YQL and Pipes for accessing and combining multiple data sources. The document stresses the importance of having a working interface and publishing the hack online for others to see.

1. BalajiNarayananHacking 101

2. Hacking?

3. “Someone who makes furniture with an axe”- Hacker in German

4. hacker: n.A person who enjoys exploring the details of programmable systems and how to stretch their capabilities

5. “Hacking” is a constructive term.“Cracking” is destructive

6. “Altering a system to do what you want it to do using what is at your disposal”- Christian Heilmann

8. Hack Day

9. 24 hours of un-interrupted, unrestrained coding and innovation

10. Hack

11. Eat

12. Get Help

13. Recharge

14. Have Fun

15. HackFixhttp://www.flickr.com/photos/rlerdorf/3250595638/

16. Present

17. Win

18. Where do I start?

19. A good hack starts with an idea…

20. Fix something you use every day

21. Build something you will use yourself

22. Hack for Good - Make the world a better place

23. Go local – tools for helping your local community

24. Don’t limit yourself to your favorite toys

25. A good hack doesn’t need to be a big thinghttp://www.flickr.com/photos/capricorndragon/4000384412/

26. Don’t look for features. Concentrate on one thing Don’t look to solve everything

27. You only have 24 hours

28. Find things that already workAnd put them together

29. Show us what can be built using the systems we (and others) offer.

30. http://developer.yahoo.com

31. http://www.github.com/

32. To build a typical web hack you need data, access and an interface

33. Yahoo! has opened up its data

34. Search (BOSS), Flickr, Geo, Social, Mail, Messenger…

35. And so have others

36. Programmable web lists 2182 APIs in their API directoryTwitter, Facebook, Google, …

37. To access these you can use YQL

38. YQL is a SQL-Like Language that lets you …

39. … filter, combine, tweak data across hundreds of Web Services. http://developer.yahoo.com/yql/console

40. How will you build a system to calculate distance between two places?

41. Use Vincenty's formulae

42. Or use YQL

43. Select kilometers FROM geo.distance where place1=“lucknow” AND place2=“kanpur”

45. YQL has more to it

46. There’s also Yahoo Pipes to do this visually

47. http://pipes.yahoo.com/

48. Data however is not enough.

49. You also need working interfaces

50. Technologies are easy:HTML, CSS, Javascript

51. Making it work on all browsers and OS is tricky

52. YUI

53. http://developer.yahoo.com/yui

54. What about reach?

55. You can build and wait for people to come

56. Or build where people are already there

57. YAPhttp://developer.yahoo.com/yap

58. Presenting your hack

59. Do not show us slides about your hack

60. Instead show us what you have done

61. Technical glitches happen

62. Have a plan-B

63. And once you are done

64. Keep your hack live for others to see

65. Show other hackers what you have done

66. Publish your code on github

67. Join us and take it even further!

68. Innovation has no limits

69. Go Hack !!!Have Fun

70. Thank YouBalaji Narayanan@balajijeganhttp://balajin.net/blog/http://slideshare.net/balajijegan/

71. Hack Resourceshttp://developer.yahoo.comhttp://developer.yahoo.com/yql/consolehttp://github.com/yahoohttp://hackyourworld.org/http://github.com/codepo8/hackday-toolbox/http://talks.php.net/show/hacku/