Ahh, summertime -- a time to relax and recharge. OK, well not really if you're an educator. In reality, educators are the most dedicated professionals I've met, and despite what the rest of the world may think, we know nobody really has summers off. But before summer officially ends and we start getting bombarded with back-to-school jingles, I thought I'd share some tips on how to make the most out of one of my favorite social networks: Twitter. Educators around the world use Twitter to become connected. And many people (including myself) credit Twitter as the best way to get on-demand professional development 24 hours a day, seven days a week. So how are people using Twitter, and how can you take advantage of it? Here are five tips to steer you in the right direction.