I'm relatively new to Twitter (like a little over a year) and I'm still not sure how I feel about it. I've been on Facebook for a few years and that seems to make more sense to me. I like that groups can be created and hashtags can be used, it's more organized with it's comments, sharing, and even a "like" button. But I'm out-numbered here and I will play the Twitter game too. Plus, Facebook is blocked here at work, but not Twitter.
In my short Twitter life-span so far I have tweeted 163 times, I follow 67, and I have 41 followers.
In the past I have used Twitter for discussion groups of educational books lead by @pamjwilson, I asked questions, offered advice, linked to new blogposts, etc. Twitter can be an excellent PD tool. Because of Twitter I learned about desmos.com, and mathalicious.com (BTW I'm still trying to convince my district that I need membership).
Here's my handle, so tweet me maybe: