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I recently wrote an article about how to use WordPress 3.0 multisite/network features. This feature is really cool but out of the box it only supports the multiple sites/blogs to be served on the same domain (networksite1.domain.com or www.domain.com/multisite1/). For some this may be fine but really most like you want to have unique domains for each individual site. In this article I provide a quick guide on how to set up multisite domain mapping in WordPress 3.0. Please note that you should not follow this tutorial if your WordPress 3.0 has not been configured to support multisites!