The Polyamory Movement

Riding the coattails of gay marriage advocacy, here comes polyamory.

Basically, it's the practice of being in more than one romantic relationship at a time, and apparently they can be either heterosexual, homosexual, or bisexual.

And the idea has captured the attention of denizens of academe. As Stanley Kurtz has discovered, there is now a movement to mainstream polyamory, to make group marriage legal.

More on this at The Wasatch Front.

P.S. Interesting discussion on marriage as an institution here.