With about 700 people signed up for the #IMMOOC, there is definitely the threat of information overload! To help find what others are writing, I use the site inoreader.com to aggregate any posts coming from participants. Instead of trying to keep up with 700 different spaces, I will have all of them come to me. The ability to curate information is a skill critical to not only this process, but education and innovation itself.
Here is a short tutorial to help you with the process.