"That's why it's probably helpful for you to check out the following list of popular educational hashtags. They have been curated by Cybraryman as well as by the Creative Education blog, tweetsmarter.com our personal usage list and hashtags.org."
Celly creates mini social networks called cells that connect you with people and topics that matter most to you. A cell can contain anybody with a cellphone, people from your existing social networks, or any web feed. We let you define filters based on hashtags, location, time, and user identity so you can eliminate noise and get alerted only when relevant messages occur.