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added a note about mindtouch, suggested wiki as group replacement, added wikispaces
Added couple of options - and a general "mobile" new feature?
I added Google Sites to the wiki option. Google Site wikis can be private or public (or both), and are very easy to use!
Added link to Sakai project to previous post.
Added some services and links. Added "Other points of reference" to show some tools, outside of Glow, that are used by significant numbers of teachers and/or learners.
Added links to providers.
Free tools added for possible use.
Added bit about collaboration in first paragraph
