That is a pretty good list, shame it doesn't have any indicators as to what games are online enabled in anyway or anything like that. It's in no way official or anything but on the UK based NGamer magazine forum they have this lovely thread which they try to keep updated. It has all the known release dates for games plus little marks next to games that have online content and multiplayer and other such stuff like that.
My SIMS does look promising, does it have any WiFi connect capabilities, I would have thought it would be perfect for sending stuff to your friends and things like that. I can also imagine Manhunt 2 working really well with an online co-op mode but I doubt they'll bother to put the effort in to actually do that.