I have similar experience with istock. Rejections,, and very low profit. SS is by far best for me, and dreamstime is second. On fotolia, I sold only two images...that's several times less than on 123rf.

Yes, I would also advice you to use their "faved" feature. It's great. I am selling only my faved images there

I think this thing with their search engine is ridiculous. I mean, I can't believe that some site which heart should be good search engine has so poor machine. I would like to know the reason for it. If all other sites can afford good search engine I can't see the reason why fotolia   can't.
It's ridiculous that we have to advice each other how to make our photos searchable on fotolia. Whole threads about: how, where and what to put first, or last...how to reindex etc. To me, it looks like fotolia doesn't care much.
I cannot find my photos if I don't use first keywords....shame.

I made an account after starting V2 on Fotolia. So, all my images are uploaded fter it. And, still, I can't find any image typing "paraglider, paragliding, purple" for example. And that is one of my images. I like Fotolia basically, but this "small" thing is REALLY getting on my nerves. Someone simply doesn't care that our images are not searchable. It's a shame.... I started that thread two months ago, and after several posts, I was told that Fotolia's search engine works fine and that my account could be deleted if I continue to talk like this. . So I decided to keep my mouth shut.  But, still, no one explained to me why I can't find my images using keywords I wrote.