A cute little Mac app that exports your address book contacts in multiple formats ...including an HTML file with hCards!
As promised by Kevin Marks in the Q&A after my panel at South by Southwest, the Google Contacts API now supports OAuth. w00t!
Now this is how to do the "find your friends" trick. For GMail, Yahoo Mail, and Hotmail, Flickr never once asks for your password. Bravo!
A lovely visual of contacts of your Twitter contacts, exploring those six degrees.
Sarah mocks up an interface for importing contacts across social networks.
A cool way of looking at photos from your Flickr contacts, built using the Flickr API by Jason Garber and Jeremy Carbaugh (who are here with me at Refresh Orlando).