Offbeat Guides, the travel site launched last summer by Technorati founder Dave Sifry, has launched a new affiliate program. Affiliates will make an 8% commission on every purchase driven from their sites; to help get the program started, Offbeat Guides is increasing this commission to 15% through June 30th for affiliates that sign up by January 31st. To join the affiliate program, you can fill out an application here.

Offbeat Guides are similar to traditional books like Lonely Planet or Frommers, but are flexible and customizable because they’re built on the fly. After prompting users for their destination and the dates they’ll be visiting, the site scours the web, using a variety of sources to generate travel guides for nearly any city (it also supports regions). The site also has a leg up on traditional guides because it can include time-sensitive information like event listings and find activities based on your interests. Guides can be previewed in the browser for free, downloaded as a PDF for $10, or printed into a full-color guide and shipped within a few days for $25.

To mark the launch of the new affiliate program, Offbeat Guides is offering $10 off printed guides and free PDF guides to the first 50 TechCrunch readers who enter the promo code ‘techcrunch10off’.