Sorry, I meant to reply but never got around to it. I actually enjoy these sorts of things from time to time. I tried Star Wars Combine (doulifee actually lent me an e-mail address to sign up) but I just couldn't get into it. I also noodled around with Pardus a bit. I was looking for a browser based game that was similar to EVE Online It didn't really work out. I spent about a month with Urban Dead, but it never really captured the intensity of a zombie outbreak and I just got bored with it after awhile.
Me and a bunch of OCR fellows spent a good deal of time with Cyber Nations. I think there still might be an OCR alliance too. That game was pretty darn fun.
Another game me and some OCR dudes spent a bunch of time with was Zelderex. I remember Effector was like, our guild boss. That game was totally fun, although required a bit more time investment than some other browser based MMOs. I recommend checking it out for sure.
I wouldn't mind finding something new and decent to waste my time with.