None of my contacts are on twitter! Its so disppointing since none of my friends (nzahra you are an exception! :p) are aware of the sweetness of making tweets. I don't remember a single gethering where I didn't try to convince my friends to be on twitter. Yesterday I sent invitations to all of them but ironically even after so many convincing efforts no one even bothored to reply to my invitation, joining twitter after the invitation is so out of question!
I don't know why twitter doesn't appeal to some folks. Its such a lovely & interesting app that its so difficult to not to fall in love with it. Below is the Common Craft video explaining Twitter Magic and I beleive if anyone of my contacts were still thinking what is twitter should get the answer.