Paypall will send you an email, saying something like you have received $$$ such and such dollars from so and so. Usually I contact the person I am buying or selling from. Not always needed. But when you recieve the money from paypall, usually send the person that won a message that you received their money and will be sending it out soon enough. Also, on your ebay auction, make sure that you put that you only accept paypall.