PMOG, the "passively multiplayer MMO," has been seeing some action around the virtual Massively office lately -- the game is basically a Firefox extension that sits in your browser, and lets you deploy mines, leave goodies, and create quests out of the actual webpages that you visit, and since we visit lots of pages around here, we're some pretty good players.
And now, after a showing at SXSW this week (which we should hear about soon), PMOG has opened its doors to the beta -- if you haven't started playing yet, you can sign up on their main page. In fact, here's an even better deal: I'm working on an achievement in game for inviting people, so you want an invite, leave a comment below, and I'll send you one myself.
It remains to be seen how the folks behind PMOG are going to fund this thing, but while it's in beta, things are ad-free and passively fun. The virtual landscape is still a little empty (most geek sites are pretty much plotted out, but some of the farther reaches of the net are completely quiet), but the more people that get in the beta, the more fun this game promises to be.