1. Sell advertising.

This is likely the most common means of leveraging a blog to generate income. If yours happens to become a well-known blog, or one that is well-received in a particular niche, it's always possible to sell ad space on your own. For lesser-known blogs, services such as Google's AdSense or BlogAds enable bloggers to establish ad programs.AdSense's — which lets you select several ads that are consistent with the content of your blog — pays you based on how many readers click on the ads for further information. Even better, it's free. BlogAds, on the other hand, hooks bloggers up with would-be advertisers and levies a commission in return for any ad placements that result. "The nice thing, too, is that the ads are relatively unobtrusive," says Scott Allen, co-author of "The Virtual Handshake: Opening Doors and Closing Deals Online."