I don’t know how many of you are apart of Twitter or know what it’s about. It’s called micro-blogging. You basically answer the question of “What are you doing?” in 140 letters or less. You have a friends-list (people you follow) and people that can follow your updates (tweets) too. You can reply (it’s public) to their posts, or direct message them (where it’s private). You can update your twitter (and @reply) from your phone through texts or mobile web. You can post links. You can post pictures with Twitpic or a few other sites or from your phone… onto Twitter! In no way am I saying “so and so uses it, so you should too“, but a lot of people use it.