Create topical resource hubs.

Are you an expert on a particular niche topic? Can you put together an overview of the topic and assemble some of the best resources on the topic from around the web? Then you can create topical hubs and get paid through sites like Squidoo, HugPages and Google Knol. Payments are based on a combination of ad revenue and affiliate fees. You'll get higher rates doing it on your own, but these sites have a built-in supply of traffic and tools to make content creation easier.