There are types of users you want to attract: buyers and sellers/submitters. It seems like the home page is geared towards the sellers, which makes sense becaus

There are types of users you want to attract: buyers and sellers/submitters. It seems like the home page is geared towards the sellers, which makes sense because you need to get a bunch of photos for it to be useful to buyers. The one thing I would note is that it's not quite obvious what the photos will be used for, which may make it hard to determine what type of pictures you want. I was able to infer that it's for stock photography, but I'm pretty sure I only know what that is because I do web development. One more tip that's a little off-topic: If this takes off (and hopefully it will) you'll be getting a deluge of photos that will need categorization and moderation. You should check out http://houdinihq.com/ http://houdinihq.com/ which offers an easy API for using Mechanical Turk. You can email me at mike@ablegray.com and I'll hook you up with the guy who runs it.