Long ago, I recall seeing a link (maybe on MeFi, but I can't find it) for a website that displayed some pretty impressive technology used to bring out the detail from shadows in photographs. I seem to recall that there was an online version that you could use for testing (upload your photo and it would lighten the shadow areas). Does anyone remember this, and if so, do you know the URL?
I like the idea behind photo.net (post photos, then get feedback, votes, etc.), but their interface is so goofy that I can't get into it. Specifically, I'm looking for a place where I can get feedback on becoming a better photographer, not just a pat on the back. What are the best photo.net alternatives?