I like to look at the ratio of followers to followed. I manage to keep mine at about 2. Now and again I lose a couple from my total of followers and then I unfollow a relatively and recently active tweep whose tweets have become less interesting.
How long does a tweet attract attention for? A few of course get read, re-read, shared and re-shared a long time after they were sent. Barack Obama’s tweet on being re-elected will probably feature in various forms for years to come.
But you and I are no Barack Obama. (Though if you are, hello! Nice of you to stop by. Good luck with the deficit, health care, Middle East and the rest.)
Ready for it? The magic number?
Yep, for half of the users sampled, 18 minutes or less was the time it took for half of their tweets’ RTs to occur…
High follower count users have a longer life than low follower count users. Okay, not that surprising. (By the way, it’s kind of in vogue to dismiss follower count, but generally it’s the most informative and productive metric there is.)
The full post is well worth a read at it contains lots of other useful points, and the bottom line is – tweets are short-lived.