Royalty-free image sources
Image copyright can be a thorny issue, and most web designers are not legal experts. But you’ve got to be confident that you have the right to use any image you place on your site. If you need an image for free, there are a few sources available. Two are PD Photo (PD standing for Public Domain) and the public domain category of Wikimedia Commons. In fact, all images used on Wikipedia display copyright information when you click on them. If the image has an expired copyright, you can use it royalty-free.
Another option is to check the Prints & Photographs Online Catalog at the US Library of Congress web site. Not every image there is free from copyright restrictions, so always double check. Here is their info page on copyright.
stock.xchng used to be a good source of free images, however they’ve been bought by GettyImages and require payment now for most of the available content. If you are willing to pay a small fee, I’ve had a good experience with Dreamstime (they’ve recently added a free section, too).
Another possibility is to buy one of those stock image collections, such as Big Box of Art or Art Explosion.
One final note: always read the fine print. Even “royalty-free” can have stipulations. If the image features a person, also look for an indication that a model release form was signed (if your project is commercial).
UPDATE: I recently found this free image site that provides you with the Photoshop PSD files.
