Another benefit to Facebook "Group" pages is that students can create groups for school group projects. They can post pictures of their project to allow other group members to see how things are going with the project, as well as communicate about any questions they may have. The students can use this as an extremely effective communication tool when organizing a group project and while trying to iron out some of the confusing details of a project. If you decide to go this route, make certain that students include you in the group so that you can actually print off the group discussions as part of their participation grade.
This issue always tends to come up, so I might as well go ahead and address it, 'What if my students don't have a computer at home or What about the students who don't have Facebook accounts?' First and foremost, don't use Facebook as your only line of communication with parents. If you want more parents to get the information you send home with their child, and you know that parents are not reading the newsletter that you e-mail them, chances are better that they will read something that has been posted on Facebook. Still communicate with parents via letters and phone calls; the human contact part is still important when building strong relationships. Talk to the parents about your plan to use Facebook with the students as well as with parents. Be up front with them about your reasoning behind the use of Facebook. As far as not having a computer at home...most parents will gladly take their child to the library to work on a computer. If their child is at a library doing homework, they are not elsewhere getting in trouble. This is the kind of homework that students do not mind having.
As always, feel free to share your opinion, but remember...keep it friendly, professional, and if you disagree...state an alternative. Just saying that you do not agree with something doesn't advance people professionally, it only cause an argument and not discussion. :)