Hashtags are used in Twitter, Facebook, and other social networking sites to search posts and look at trends. Tagboard searches all of these sites for the hashtag you are interested in and brings them all into one place in real time. If students were studying a topic, a hashtag could be made for this research and then gathered and displayed using Tagboard. I typed in #shakespeare. Try it for yourself!
For more information, read George Couros’ blog post here.