I have an exact domain match for a non competitive industry.
I was ranking #3 so figured I'd do an article markeing run (only about 10 of them, the large ones)
I used "natural" links, no money keywords. To my horror Google dropped me 14 spots immediately...
Seems they don't like ANY kind of link building.
Seems like diluting exessive anchor text will sink you further.
Seems like getting out of SEO completely is the solution.
PS. MSN Adcenter converts wayyyyyyyyyyyyyyyyyyyyyyyyyyyyy more than adwords.
Adwords is a waste of time, Google is a waste of time.