In this video Dan Bien, Principal Program Manager from the CRM team walks through the list of steps required to list your CRM 2011 App in the Dynamics Marketplace. Most of the steps are for first time partners. Existing Dynamics partners may be able to skip some of the steps that Dan mentions.

We look forward to seeing your application in the Dynamics Marketplace.

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Since the video was captured at a high resolution, watching it in High Quality WMV is highly recommended.
http://channel9.msdn.com/Blogs/girishr/Listing-your-app-in-the-Dynamics-Marketplace