Crossover Fandom

Some fanfic (or even non-fanfic) crossovers make sense because of the meta-connections. For example, I totally understand people who write All Creatures Great and Small/Doctor Who crossovers; the same actor appearing in both series makes doppelganger stories just pop out all over the place. And the relatively small stable of British actors (as compared with the American stable(s)) means that you can then cross over Doctor Who with pretty much any other British TV show or movie. Thus we end up with Snape chasing Barty Crouch Jr. right into a Dalek and discovering whether Avada Kedavra works on an alien in an armored shell, or other such cracktasticness. There are a lot of Angel/Torchwood and Stargate/Eureka crossovers based on the same doppelganger effect. The link between different shows/movies/books based on shared authorship is a little harder to justify in story, but having Buffy kick Jayne's ass or having River staking demons flows pretty easily, even if it doesn't actually make sense.

( I continue talking about fanfic behind the cut; those who neither read nor write the stuff can safely skip all this. )

Crossover Fandom

Some fanfic (or even non-fanfic) crossovers make sense because of the meta-connections. For example, I totally understand people who write All Creatures Great and Small/Doctor Who crossovers; the same actor appearing in both series makes doppelganger stories just pop out all over the place. And the relatively small stable of British actors (as compared with the American stable(s)) means that you can then cross over Doctor Who with pretty much any other British TV show or movie. Thus we end up with Snape chasing Barty Crouch Jr. right into a Dalek and discovering whether Avada Kedavra works on an alien in an armored shell, or other such cracktasticness. There are a lot of Angel/Torchwood and Stargate/Eureka crossovers based on the same doppelganger effect. The link between different shows/movies/books based on shared authorship is a little harder to justify in story, but having Buffy kick Jayne's ass or having River staking demons flows pretty easily, even if it doesn't actually make sense.

( I continue talking about fanfic behind the cut; those who neither read nor write the stuff can safely skip all this. )