I am particularly interested in anyone's experiences with wikis (what's the best one?) and nings in the classroom. I am wondering about safety issues (can I protect my students' identities) and how to manage middle schoolers using these technologies. I am the Technology Integrator for my middle school, so I am looking for ways to use these particularly in English, American History, and/or Science. Does anybody out there have any great ideas or examples? What about global classroom projects that worked well using these technologies?