I personally use niche websites and affiliate marketing for generating pretty passive income. If you can drive traffic using keyword research, it's becomes really passive after the articles go up.

Google Adsense + Amazon Associates can bring in quite a good bit if done correctly.

Sidenote: If you guys are interested in passive income discussions, you should probably join the live chat on IRC.

http://webchat.freenode.net/?channels=%23%23passiveincome&ui...