I've been searching Google+ for tips on how to deal with Trolls on your comments and posts.
Here are the results:
From +Guy Kawasaki
Top 12 Signs You're Dealing With Trolls
Dealing with trolls is one of the costs of participating in social media. These are the folks who combine a strong opinion with a lack of knowledge. A handful of inflammatory and negative comments can neutralize dozens of positive ones. Here are the top twelve signs that you're dealing with someone who lives under a bridge.