Doodle Source gathers all Google logos worldwide the second they are changed and keeps an archive where you can browse older Doodles. You can even sort them by country, title and/or date.
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YouTube Video Map
Google APIlity Library
Performing automated language translations with Flex and Google
Some Google in Your Apps
Build a Site Search with the Google Search API
Using the Google Web Services API with Flash
SWX Twitter API
Create a Twitter Mood Graph With Ruby
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Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.