I saved this old link in my Bloglines clipping folder: Presentation Zen: Where can you find good images?

Here's a snippet:

Free (but not bad)
(1) Morgue File
Providing "...free image reference material for use in all creative pursuits.
(2) Flickr's Creative Commons pool
Search the myriad photos people are sharing on flickr by the type of CC license.
(3) Image*After
From their site: "Image*After is a large online free photo collection. You can download and use any image or texture...and use it in your own work, either personal or commercial."
(4) Stock.xchng
Close to 200,000 photos. Some gems in there if you look. Some are free, some require buying credits.
(5) Everystockphoto. Indexing over 283,000 free photos. Very Nice - indexes the other sites!
(6) Studio.25: Digital Resource Bank.
(7) Freepixels. About 2000 photos. meh.
(8) The Photoshop tutorial blog. This cool blog has a laundry list of free photo sites.
(9) Robin Good has a good page dedicated to helping you find good images. FANTASTIC list of links.

Fonts (free or cheap)
(1) 1001 Fonts.com. A lot of free fonts. You get what you pay for, but many are pretty good. Find by most popular, highest rated. Articles, message board, etc.
(2) 1001freefonts.com. 4000 fonts for $9.95 (download).
(3) iFree. This Australian site links to free stuff in Australia and worldwide, like fonts, freeware, etc.
(4) Indezine on fonts. There are so many font sites out there, I trust the folks at Indezine to narrow it down. They list about ten.
(5) HighFonts.com. Database of about 3000 free fonts.