Why did you ReTweet that Tweet?

Dan Zarella has been using Twitter as a Petri dish for human behavior. I recently discovered his blog while searching for information on the propagation of vocabulary on social networks. He bills himself as a "social media and viral marketing scientist". One thing he's looked at is how retweets spread, which is worth a look.

I was interested in why people retweet. Since it's Friday, I thought it might be fun to try a poll on the subject. If you use Twitter, please give it a try, and retweet the link!

Directions: Look at your Twitter update history. Find the last thing you retweeted (not this!). For that retweet, pick the one answer which best expresses the most important reason for you to retweet that tweet. If there's another reason I haven't thought of, leave a comment!