Yet another reason to avoid commercial web services for educational purposes...

Why not use Facebook, Google+, etc. with your teachers and learners? Well, here's yet another reason:

"To Read All Of The Privacy Policies You Encounter, You'd Need To Take A Month Off From Work Each Year

We've discussed the stupidity of privacy policies many times in the past. Honestly, it's an idea that serves no useful purpose, yet most sites are required to have one, and if you don't, people get all upset. But no one reads them, and most people incorrectly assume that if a site has any privacy policy, they must keep data private.

The reality is that the incentives of a privacy policy are to not use it to keep your info private. In fact, the incentives are to make a privacy policy as permissive as possible. Because the only time you get in trouble is not if you fail to protect someone's privacy..." read on: http://www.techdirt.com/articles/20120420/10560418585/to-read-all-p...