OK folks, for those of you that want the direct links to the pages I have in today’s show:
Customize.org
Smashing Magazine’s wallpaper list
David Lanham’s Art
Skins.be (NSFW!)
Anime Paper
Interface Lift wallpaper
Exploding Dog
Mandolux
Pixelgirl Presents
Flickr Desktops group
Don’t forget to leave your suggestions in the comments!
-Wil
Shame on you! You missed the greatest of them all 
http://www.vladstudio.com/home/
###Be advised###
Mcafee Site Advisor finds a problem with skins.be as they distribute adware. Check site advisor here: http://www.siteadvisor.com/sites/skins.be
Also a minor problem with customize.org, it appears they publish e-mail addresses on the web making them available to spammers. Check here:
http://www.siteadvisor.com/sites/customize.org
All other links were tested and are safe according to Mcafee SiteAdvisor.
Another great wallpaper site for the lonely:
One of my favorites is http://www.deviantart.com You can find almost anything here.
[…] podcast site the other day called Channel Flip. One of the podcast shows is called Unwired. Episode #55 had some cool desktop wallpaper […]
Thanks for doing this episode on desktop wallpaper. One of my favorites used to be Webshots because they had a large selection of vintage black-and-white photos that you could use for wallpaper. Unfortunately, they don’t seem to do wallpaper anymore.
My 15-year-old daughter is a big fan of Deviant Art, as well. I think it would appeal to the same crowd that like Animes Paper.
I use the following two sites for my desktop pictures:
http://www.caedes.net/
and
http://www.digitalblasphemy.com/dbhome.shtml (some free images; otherwise, subscription required)
I found digital blasphemy to have great images for wallpaper even if you have to pay for the full set if you want more than the free stuff (http://www.digitalblasphemy.com/)