We've been adding better photos to the site, and they are licensed under Creative Commons. I want to thank the photographers for their great work... Here's their attributions.
Red Arrow hosted an Ultimate Frisbee Contest by Red Arrow Camp https://www.flickr.com/photos/27999089@N08/42448374064
Jul 16, 2009 - Ultimate frisbee by Ed Yourdon https://www.flickr.com/photos/72098626@N00/3725824965
Ultimate Frisbee by Matt Deavenport https://www.flickr.com/photos/42634768@N06/15409853738
Ulimate Frisbee - Fabulous layout in a world women's ultimate frisbee championship final by Toby Green1992 https://www.flickr.com/photos/52354170@N00/771788684
"Paganello": the Spirit of the game by Riccardo Ghinelli https://www.flickr.com/photos/30735336@N00/34026394566
228/365 Spirit Winner by tallasiandude https://www.flickr.com/photos/54477708@N00/3832706730
the first mothey ultimate frisbee team by Shreyans Bhansali https://www.flickr.com/photos/94416001@N00/30025694