It looks like the original poster knows of these sites but is having difficulty finding good freelancers from these sites. Do you have recommendations for finding good freelancers through these sites?

Thanks for our laugh for this morning Mike. We had no idea we were ranking for that!

I wouldn't know. Never have heard of a company that ever tried to give out any teases when anything new is coming along.

Beep!

I've collected several resources for negative keyword lists, as well as techniques for making your own, in this post at http://www.seomoz.org/blog/negative-keywords-for-positive-roi. I'm asking another associate who has more PPC experience than I to chime in with any additional experience.

I think of it as why did my mom tell me I couldn't go to the mall when my dad told me I could. Same question, asked of two people with the same goal (to parent their child), yet Mom took into account that I had been playing video games instead of doing homework, while Dad took into account that I had cleaned my room the previous weekend.

The two engines have different indexes and different factors they look for in ranking things. I'd be sure to check in Google Webmaster Tools to see if there are any notices to you there. Also look at who is ranking above you on Google and see if there's a reason you should be above them (do you have higher-quality content? more links? etc).