Spin Offs
All the crazy series that have spun off...

Angel
Of course the obvious is Angel. After series 3 Angel moved to LA with Cordelia and met up with Doyle. However he soon died and was replaced by Wesley. This series actually got made though.

Reaver
A giles spin-off! How cool is that. There was going to be a whole series made but Joss seemed to drift towards TV movies or maybe even just regular movies. Haven't heard much lately.

Annimated Series
Originally it seemed to be actually getting made and everyone except Sarah Michelle Gellar was onboard. Then it just disappeared though. Now apparently it is back on track last we heard, so yay!

Faith
Eliza Dushku was offered a Faith spin-off however she turned it down in favour of doing Tru Calling (which out of interest has been picked up for a second series).

Others
There were other mentions though they were really little more than rumour. Spike was rumoured to getting a spin off. We also considered how cool an Oz spin offf would be over on Buffy Talk.