This article explains how to create a new group and has a convenient link to get one going fast.

It’s easy to start a group. Just click Start a Group on any Yahoo! Groups page. We'll walk you through a simple set-up process.

Your group will be listed in the Yahoo! Groups directory within a few days, in the category that you select during the set-up process. Occasionally, our team of category editors comes across groups they feel have been categorized incorrectly, and if this happens with your group, we’ll let you know.