I've not been in Second Life for several weeks (and haven't missed it). In fact, I doubt if even my favourite TV show — CSI — will persuade me to head back, though there's a new CSI:NY episode featuring Second Life, though the latter is not named, which aired on CBS in the States October 24.
The episode, says New World Notes, led to "an explosion of new account sign-ups — as many as 100,000" joining Second Life, that is. It would be interesting to know how many of those would rather spend time in SL than they would watching CSI on the telly, once they've experienced SL. Not many, I would guess…
You can watch the promotional machinima on YouTube.
Elsewhere, on virtualworldsreview.com, there's are reviews of some of the (many) alternative virtual worlds, though not many of them are making as big an impact as SL, not at least in the media.