Web Design: free images deposits

When designing a new web site, images, icons and photos are important. A general theme for the site is strongly emphasised by graphic elements. Sometimes we can use original images, sometimes we need to search the net, but being sure that there's not copyright infringements when we use them on our web site (especially if it's a commercial one).
There are free images deposits that can be browsed and, provided we check the eventual license agreement, those pictures are freely usable in our own projects.
Here are some useful links to those kind of repositories:

• Flickr: Creative Commons
• MorgueFile: free photos
• FreePhotosBank
• FreeMediaGoo (audio, images, textures and flash)
• FreeDigitalPhotos
• InterfaceLift Icons

I hope the above list might be of some use for you.
In the meantime, happy coding!