I just became a member (free) of this great photo site called TrekEarth. You can upload your photos, and people can comment on the photos. The photos are from all parts of the globe, and most are really beautiful. I am planning on doing some new scans of slides and submit them to the site.

One other cool thing about the site is that you can keep a list of favorite photographers so you can check back later to see new photos. In addition to the critiques, there are workshops, travelogues, and discussion forums. Pretty cool.