Dan Zarrella is one of my favorite thinkers on social media, because he mines massive amounts of data and bases his recommendations on hard science. This is relatively rare yet needed in the field of social media marketing, and so he’s well worth following.
He recently analyzed 2.7 million tweets and concluded the following that people retweet when they are asked nicely as part of the original tweet. Conclusion? If you have something you want people to spread, ask them – with a pretty please.