The Lotus WIKIs are here
Steve Casteldine's blog template which is IBM's official Domino blog since Domino 7.02 got a recent boost in functionality: it now also serves as a WIKI. The Lotus team announced availability about a month ago. The following WIKIs are available: Internet doesn't reach (yet). There is no WIKI for Notes and Domino. Given the rich material available all over the net, that wouldn't make sense (would it?). A link collection maybe, for an aggregation check PlanetLotus.