Today's tool - online photo editing

Three amazing tools to use when you don't have / don't know Photoshop:

http://www.befunky.com

Add various effects to your photos

No registration required, free

http://pixlr.com

Advanced photo editor and simple tool to add retro effects to photos

No registration required, free

http://www.picnik.com

 Photo editor and collage maker

Free and without registration

Any ideas how to use it in libraries?

-       More attractive posters, leaflets

-       Funky or retro photos of librarians :)