Wikispaces has made a change to their pricing plans for non-academic blogs. Most K-12 teachers who are using Wikispaces won’t notice a thing because of this change. However, if you are using Wikispaces with personal email address (Gmail, Hotmail, etc) instead of your school email address, you may have to confirm or re-confirm that you are using your wikis for school purposes. You can read the full announcement from Wikispaces here on their blog. To be clear, Wikispaces is still giving completely free access to K-12 teachers and students.