A very good copywriter usually goes that route too. They will take a cut of the percentage instead of charging a flat fee. I've been ripped off many times by copywriters. Most are arrogant mean spirited types that claim their copy will increase sales, but then they can't even get the content right. I've had to edit their lies & facts numerous time.
As for SEOers, I have yet to find a good one who's open minded & will help me figure out why my site dropped from #1 to #8.
Things on Google are diving FAST. Small businesses are going out of business b/c of them. I read that in the next few weeks things are going to get worse. Google is now going to only show you 5 results on the first page of their results so their PPC ads take up the majority of the page.
I also heard a rumor (don't know if it's true) that they are trying to get rid of all adult online
