Steve's Free DTP Beautiful photography by Steve Fuchs, along with several sets by other contributors.

MacNN The Mac News Network: daily Macintosh news, software update announcements, and discussion

desktoppictures.com Beautiful pictures organized by subject, and also a nice Guide to other desktop pictures pages

SiteLink The Web Guide for Mac Users: a directory of Macintosh-related web resources

Desktopia Large collection of desktop pictures by contributors, organized by subject

MacDesktops Well-designed site housing a large collection of submitted desktop pictures

Sleeping Cat Software Home of DeskPictRotator Pro, a Macintosh utility for randomizing your desktop picture

Dealmac The best web site for finding deals on Mac hardware and software