Good-Bye Wikispaces

News came out last week that the popular free wiki platform, Wikispaces, is closing up shop. As they state on their blog:

Over the last twelve months we have been carrying out a complete technical review of the infrastructure and software we use to serve Wikispaces users. As part of the review, it has become apparent that the required investment to bring the infrastructure and code in line with modern standards is very substantial. We have explored all possible options for keeping Wikispaces ru...