Desktop Backgrounds (16x10), a set on Flickr.
I just created a Desktop Backgrounds set on Flickr. I really wanted to do this on Google+ (PicasaWeb), but could not figure out how to share the high resolution originals. I even had some discussion on the topic in Google+ the other day.
While I would love to do everything in one place, I also realize that I might be asking for a bit too much. You know me... always shooting for the moon. ;)