Flickr — The communal photo-posting site. Large community of photographers commenting on, rating, and tagging each others' photos. http://www.flickr.com/photos/

 Flickr Inspector — Generates a page of info about a particular Flickr user, including statistics and a compilation of publically-accessible photos and info. http://netomer.de/flickrtools/inspector/?

 Flickr Tools at Netomer.de — A page of several useful Flickr-related tools, including TagFight. http://netomer.de/alotofflickrtools/

 FlickrLeech.net — Downloads mass quantities of Flickr thumbnails, so you can view hundreds of thumbnails at one time. http://www.FlickrLeech.net/