Hi, I've just gone through the process of signing up with Alamy (www.alamy.com
). they need file sizes of 48MB minimum which can be interpolated from an 8 MP camera. They do a pretty good deal 35/65. you do have to pass a quality control selection of ten images before you can upload. I found this bit takes about a month. After that, there is no limit to the amount of images uploaded (the more you have, the more likely you are to sell). they continue to check a percentage of new images in your new submissions for quality. You will have to do your own keywording. i think this is a very important area. You need to think carefully what words you choose. Think lateraly! As heinz says, think about themes for subjects. People doing things, conveying emotions, symbolism etc. You will need to get model releases.
hope this helps,