The aim for Gleemax is essentially to be a site where a variety of gamer networking can take place: pages for stores and publishers (and, potentially, sites like ENWorld), links to internet resources, personal pages with info on game preferences, a 'search for gamers' facility and many many other things.
It hasn't been launched yet, and probably won't be for a few months. At the moment it's got some general forums where there's more cross-platform discussion than I've ever seen on the WotC boards before; and an ARG based around sending in photos of particular hard-to-find items (which I know little about as I'm not that interested in it).
The 'real' Gleemax will begin to launch over the next few months. Sensible information contained in the podcast and blog on the site, and various press-releases etc. Ignore the 'Minions' speak - that's more to do with the ARG than the site-which-will-be.