One of the major tipping points in getting a business benefit from using Twitter is if you can provide something which spreads via other users seeing value and retweeting it.
Which is why the work Dan Zarella has started looks like it’s the beginning of something incredibly useful and valuable…
What’s in a Retweet? The Data Behind Viral Messaging on Twitter | Dan Zarrella.
It also reinforces the value of being polite and saying ‘Please’ !