Have you been to a TweetUp? They come in every size and shape and there is nearly one for every interest! A TweetUp is a social event that is promoted and organized on Twitter. “It's basically a place to meet and network with people in the Sacramento area who use Twitter,” said Alejandro Reyes, co-organizer of #SacTweetUp, a monthly networking mixer that regularly attracts over 100 attendees. “We wanted to create an atmosphere where people using Twitter could connect on a much deeper level, build new relationships, and have a lot of fun.” #SacTweetUps usually occur in the evening at a downtown or midtown hot spot; but what if big crowds or night life venues aren’t your thing? For those w