Inciting the AI's to wage war against each other

OK, I want to get the AI's beating each other's brains out. What's the best way to get this dynamic going?

Random thoughts....
Get another AI to agree to a trade embargo
Sign mutual protection pact and then declare war yourself
(nice to make sure your new friend has a big border w/ your new common enemy)
Tell Ceasar that Cleopatra called his mom a dirty name?

Any way to get thing churned up without being drawn into the war yourself?

One way to agitate the ai is to 1: supply lots of luxaries and 2: stop all luxary trade or trade with someone else. A peaceful game tends to be one where there are luxaries a plenty.

One of the best ways is to:

Try to have a civ declare war on you... (this can be down without a rep hit by trying constantly to plant a spy in there capital.. and it fails). This makes the AI's "lean" to your side some... and it also helps with war weariness. Note: It also helps if the AI that declares war on you is on the opposite side of the planet.... for you see little action yourself. Then... sign Millitary Alliance's with other Civ's against that civ... (two or three should be enough). Then let the AI's sign more MA's against eachother and it becomes a world war.