I use Flickr every day. It is one of those sites that has everything. I like to browser through the most interesting pictures, but find the 10-at-a-time interface too time consuming.  FlickrLeech is a site that will show all 500 pictures on one page.
Retrievr lets you draw a picture in a “sketch” box and then do a search based on that shape. I can’t draw very well, but it is an interesting way to search.
http://labs.systemone.at/retrievr/
Slightlyblue’s site lets you pick a background color and then searches Flickr based on that color.Â
If you need some Create Common licensed photos and don’t like the 10-at-a-time interface, here are two sites that let you search only the CC licensed content and view all of them on one page.
![Manual Aperture [405/1000] Manual Aperture [405/1000]](http://farm8.staticflickr.com/7055/6849853919_313cb31dae_t.jpg)

![Big Tree Beside Road [404/1000] Big Tree Beside Road [404/1000]](http://farm8.staticflickr.com/7151/6844404451_6d2eb083df_t.jpg)
![Night Lights [403/1000] Night Lights [403/1000]](http://farm8.staticflickr.com/7184/6844370787_1f6ab62b3f_t.jpg)
![By the light of the full moon [6/52] By the light of the full moon [6/52]](http://farm8.staticflickr.com/7160/6838220175_5659a56fdc_t.jpg)