Zemanta is a great browser addon that lets you quickly enhance what you write in your blogs and emails. Quickly and automatically link to related webpages and pictures.
First of all - what exactly are we trying to achieve here?
1. Get backlinks with Your Chosen Keywords as Anchor
2. Get backlinks ONLY from blogs that pass PR juice
3. Get backlinks for FREE and from Content (just the way Google loves it)!
I *highly* recommend you visit his site, sign up for his feed, read his Wordpress Web 2.0 Free guide, and benefit from his insights like I have. You won't be disappointed!