Knol is online. And I like that they offer some licensing options for CC and GFDL. Not sure if this might not end in some confusion (as you cant mix two articles). Also not sure if what they do will make sense. Bu I like this parts:
5.1. No Google Ownership of User Content. Google claims no ownership or control over any content submitted, posted or displayed by you on or through the Service. You or a third party licensor, as appropriate, retain all patent, trademark and copyright to any content you submit, post or display on or through the Service and you are responsible for protecting those rights, as appropriate.