What it is: If you’re like me, you can think of hundreds of ways that social networks could be used positively in the classroom. The problem: most of us can’t access said networks in our classrooms-blocked by over zealous filtering! Not to worry, there are some great classroom alternatives including Diipo and Edmodo. Diipo is a social network created specially for education.  I learned about this particular tool from @nottil, a high school student in Virginia (thanks @nottil!).  Diipo makes it easy to communicate with your students, connect with other educators, and other classes.  The interface is similar in feel…