Presented by the technical lead from Trellon.

APIs let your code interface with other codes - core or contrib.
if you write code, other developers will want to interfact with yours. If you think in terms of Apis, your code quality improves.

Which APIs should you know?

• hooks
• theme system
• forms API
• taxonomy
• node API
• CCK
• Views
• Ctools
• token
• relationships
• activity
• organic groups
• services API
• apacheSolr
• feeds
• WYSIWYG
• domain access
• triggers and actions
• messaging / notifications
• voting API