11 of the best online sci-fi communities you should join now

We all love chatting about sci-fi with other fans, but sometimes we don't want to leave the couch.

It goes without saying that the Internet is the perfect solution to this dilemma, but the Internet is a really, really big place, and there's a lot of useless stuff floating around out there. (But hey, isn't that half the fun?) So, where to go? Where should you head if you want to get into some really serious discussions on Cardassian biology, or Tywin Lannister's wealth, or the Doctor's double cardiac system, or which obscure trick arrow Hawkeye should haul out of his quiver more often?

Luckily, your options are many, but to help get you started, we've assembled a few of our favorite web destinations for sci-fi fandom below. We tried to keep our list to general interest sci-fi communities, but we know there are lots of other great franchise-specific communities out there, too. If you know of some you think other Blastr readers might enjoy,  or any other favorite place to go to be a fan with other fans, please let us know in the comments.