Thomas Hawk offers his thoughts on the current state of photo display on social networks

App that takes a twitter name, looks for Flickr photos based on keywords in the user's tweet stream, then allows the user to create/save a collage of the photos.

A custom perl script to generate a Flickr badge

Adds icons for Mail, Profile, Favourites, Scout, Interestingness, DNA, Leech and the user's photo archive next to usernames in forums and on individual photo pages.

.NET library for accessing the Flickr API

Analysis of social browsing behavior on Flickr - 8 page PDF

How to find a Flickr userid based on a static url

Find out all sorts of interesting data based on a flickr photostream

An interesting cross-site folksonomy search engine. Search del.iciou.us, flickr, newsvine, feedster, and others