Http://blogs.msdn.com/brada/archive/2009/03/25/silverlight-3-and-seo.aspx
All great Ria applications have a powerful client and server component. Supporting SEO (Search Engine Optimization) in RIA is a good example to use client and server components. It is not about how cool your application is. If potential customers do not find your website through search engines (Google, Yahoo, live, and so on, then you have no luck. Therefore, it is very important to plan Seo in advance. However, the real useful information in many applications is dynamically imported or data-driven. Fortunately,. Net Ria services has some built-in Seo support features that you can use in RIA applications, including Silverlight and Ajax!
In mix 09 talk, I demonstrated a very simple way to add SEO to a data-driven Silverlight application. Now Warren (developer of this feature) has written more about Seo and provided a very cool example.
Search engine optimization for Silverlight applications (Basic Idea)
Search engine optimization for Silverlight applications-Part 2 Search Engine Optimization for Silverlight applications 2 (example)
You can use your search engine to view "Silverlight store wireless keyboard 7000". The Warren's sample application is the top hit rate. If you have installed Silverlight 3, you will have a good Ria user experience. Otherwise, you will see an acceptable HTML-based web page experience.
Are you trying to use this project with. Net Ria services? I would like to hear your feedback and thoughts on this model.