One of the tried and true ways of finding information on the web is to use Google or any other search engine. But, there are lots of discussions going on with the Twitter crowd that you can also tap into and you don't need a Twitter account to do it. Try using Twitterfall.
When you go to this website, instructions are right there to help you get started.
The easiest thing for you to do is to search for a specific term.
So, when someone uses that term in a tweet, it'll show up in your results. (be patient after you add a search, it takes a few seconds for this tool to connect with Twitter. ) This way you get to take advantage of the collective knowledge of other educators.