2009 seems to be the year of 2.0. Of course, CA announced Mainframe 2.0 this past May. Well, now it seems that http://trexxers.com/ 2.0 is out there too!
As you may recall from my blog posting last December 9 (see http://community.ca.com/blogs/execio/archive/2008/12/09/informal-mainframers.aspx), there's an informal mainframe community that has sprung up called TREXXERS.com. Well, apparently there were a few details that needed to be ironed out to ensure they were running as smoothly as possible, so they were offline for a little while.
As it turns out, however, that's all well behind them now, and they're up, running, and fully independent (they even have a board of directors made of people from a number of different organizations).
I just checked it out, and the amount of interesting (to mainframers, at least) information there appears to be significant, and rapidly growing.
So, check it out, and maybe add something yourself as well. While you're at it, let me know what you think about it.