Different kinds of arbitrage?

Hello,
An arbitrage that I know is the triangle. Ex: price EurUsd x price UsdChf = price EurChf
Samebody know another kind of arbitrage ?
Regards,

interest rate

Somebody have more suggestions ?

The Rothschilds Gold operation is the best arbitrage operation I've ever heard of..

People do it on horse races by taking advantage of different odds between different bookmakers... The same thing happens in FOREX between different dealers but not a game for us retail hippies... I guess the odd occasion would come up to take advantage of differences in brokers quotes but I'm guessing it would be pretty dam rare

http://en.wikipedia.org/wiki/Arbitrage

See: 'Types of financial arbitrage'