What if you have a good keyword (defined by many searches, not much organic competition, but a decent number of sites running PPC campaigns) but the keyword is something you would not recommend?
You write an article basically saying you would not recommend "widgety widgets" because of the following facts…blah blah blah..
Adsense serves up "widgety widgets" ads. Will you get clicks? Is it best to avoid this keyword altogether? Or should you write this article just for the traffic and not run adsense? Any other ideas?