almighty_monkey - 8:57 am on Jul 12, 2011 (gmt 0)
Also, remember most directoried get their 'PR' from recripocal linking.
So, while the toolbar PR may inflate, their outbound 'link juice' is lost at the same rate. Meaning your link has a much lower value.
I'd spend time looking for authorative and specfic directories if I were you. PR's will be lower, but you care about making money, not being emotionally validated by a little green bar, right? Also, raid any local-themed directories that Google Places source reviews from (even if Places isn't important to you - I'm still seeing value from these)