Great open source sound site

I'm planning on using some sounds in my project, specifically the sounds of creeks, maybe some waves etc; basically softly running water. This site:

http://freesound.iua.upf.edu/

and this sound of gentle waves in particular are really nice.

Here's a good stream, or two.

Here's a good river, and finally, a great fjord.

Finally, here is a great article about using sound to create/change space.