Graphic to help make writing more visceral
http://i.imgur.com/1Iw7Cha.jpg
A few of the words a bit much for what we do (who says "detestable"?), but there's some good stuff here, too. Lots of good words for exacerbating the problem.
I also recommend Words That Sell, by Richard Bayan.
On the whole, you get what you pay for.