Synchronic Tools in EFL class room

Using the synchronic tools that we learned in EDU401, is something I believe I will use it in my future classroom activity. I will use twitter, wikies, and create a small chat group via Voxopop. But a main drawback is that some of the students their parents don't allow them to use internet except for searching google. Another major drawback is not having internet connection in the school, or even at home.