Thinglink.org is an open database where makers can register their work for free and create labels for their products. Here are pictures of objects registered with thinglink and thingtagged on Flickr.
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The Sheep Market
Google APIlity Library
Flickr Api Explorer
Flickr Upload in Perl
Python Wrapper for Flickr API
Flashr, a Flickr Wrapper in Flash
Objective-C Wrapper for Flickr API
rflickr Ruby Wrapper for Flickr API
APIs, mashups and code. Because the world's your programmable oyster.
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.