There are still tons of fanzines. Including Star Trek fanzines. In fact, they've become public in a way I am not comfortable with. There's a online Web site where you can buy them with a credit card, and they regularly appear on eBay. Including the slash ones. =:-O

A lot of the old fanzines went belly-up, but not because of legal issues. The main reason, I think, is the net. The Internet allows people to download all the fanfic they can read, for free. And it allows fanfic writers to instantaneously reach a world-wide audience far larger than even the most popular fanzine. Dead-tree zines can't compete. Who wants to wait months, even years, for their stories to be published? And who wants to pay $15 or $20 when you can get it for free online?

The old-timers still buy fanzines. (Though these are often compilations of netfic nowadays.) But fewer new fans do. They just see no reason to pay for fanfic.