the # symbol is for hashtags, a lot of people "follow" certain hashtags, theyre also used for chat purposes (Sunday night #blogchat is my favorite)
Tweetdeck makes it very easy to follow several hashtags and to post/respond from several different twitter user accounts.
I forgot the name of the tool to see how many people are following which hashtag. I don't see the phenomena as one that will last very long. I also see people overusing it. #wine #beverage #drink #alcohol That's a lot of characters to add for no reason.
