What is it with Twitter? Part Crack, Part Connection. Hmmm.

I started tweeting a few weeks ago. First one cautious tweet.  Then another tweet.  I watched what others were tweeting, and then did the same.  I followed. I gathered followers.  I am friendly not too snarky (most of the time). I shared some personal information and political observations. I advertised some of my Etsy wares and musical discoveries.  I've received encouragement, tips and general informatio.  People follow my links and visit my blog.  Amazing!

 And I'm totally overcome with it.  I can't quite put my finger on why its so compelling.  Can any one tell me?