Two interesting points for me are that peer recommendations are so highly valued and the vastness of Wikipedia. I think an authentic activity/assessment in my Spanish classroom could be to have students write reviews/recommendations in Spanish about different restaurants in our area. This could be a whole section on a class blog and could include hotels, museums, etc., for when students take vacations or class trips. This would be a way to incorporate a real world task as well as teach students how to read and write reviews to make more educated choices. If peer recommendations are so valued in our world today, students should learn how to write and review them with discretion and honesty.
When I was in undergrad I did a neat activity in my Educational Psychology class pertaining to Wikipedia. We had a selection of topics based on current class content that were under cited on Wikipedia. Our task was to add to Wikipedia with research and citations of scholarly articles to support our evidence. This was a beneficial task because it taught me 1. how to edit Wikipedia 2. that Wikipedia can be edited by anyone 3. the importance of citations and evidence in making research claims. I would love to incorporate this project into my own classroom, teaching my students to research, write scholarly, edit Wikipedia, and again, use discretion when using online sources. There is something really fantastic about students having done work that is instantly published and available for everyone in the world to use. I think this realization for students is the goal of social media and the read/write web, as discussed in Will Richardson's book Blogs, Wikis, Podcasts and Other Powerful Web Tools for Classrooms.
As far as Facebook, is it appropriate to make a class page? I have never investigated this but it could be interesting. If any of you reading this have insights, please share. Seeing how powerful these tools are, I am really going to be thinking about how I can best incorporate them in my classroom to make my lessons as meaningful and engaging as I can.