MicrostockGroup

You don't search the most popular keywords to keyword your own images. You just put what's actually in your images. The most popular keywords searched on are quite possilbly nude woman, but that doesn't mean it's being bought most, and there's no point in putting these keywords into your image unless that's actually what's in your image. There is no sense in p*ssing buyers off by keyword spamming.
There are some programs out there that claim to do some of the work, but the results are usually poor.

Thanks for the advise, I was coming from a view of not using these for my own keyword, just want to see if there is any thing out there that can be utilize.