From Web Pro News
Retweeting is an incredibly useful tool for tweet promotion, which ultimately means for content promotion. If you are producing content, you want people to retweet it and spread it virally around the Twitterverse. This can lead to some big-time traffic. There are other business benefits to retweets as well.
Shéa Bennett, who writes the blog Twittercism, has come up with an obvious, but no so obvious equation for retweet optimization. The concept itself is obvious, the equation itself – not as much. The concept is this: consider Twitter’s 140-character limit, consider your user name, and consider how many characters you need to leave free.
“When sharing links and content, I always ensure I leave a minimum of 12 characters at the end of each and every tweet,” says Bennett. “This is a great habit to adopt. Otherwise, those wanting to retweet you are forced to edit your submissions so that they can give the proper credit. Because f this extra work, many times, they simply won’t bother retweeting you at all.”
Originally, Bennett’s equation was:
Your Number = length of username + five characters
That was based on a retweet looking something like this:
RT_@Sheamus_The original tweet goes in here…
The five characters in the equation come from the “R,” the “T,” the “@,” and the two spaces (represented above by underscores).
12 is Bennett’s number. At least it was. He had to change it to 15, because “RT” isn’t the only way people retweet. Sometimes they use “via” with parentheses around “via @username”. Upon realization of this, Bennett added 3 to the equation.