Can Google index a website made entirely in Flash?
Yes. Google can now discover and index text content in SWF files of all kinds, including self-contained Flash websites and Flash gadgets such as buttons or menus. This includes all textual content visible to the user. Google supports common JavaScript techniques. In addition, Google can now find and follow URLs embedded in Flash files. Google crawl and index this content in the same way that they crawl and index other content on your site—you don’t need to take any special action. However, Google don’t guarantee that they’ll crawl or index all the content, Flash or otherwise.
They’re continually working to improve indexing of Flash files, but there are some limitations:
* Google currently do not attach content from external resources that are loaded by your Flash files. If your Flash file loads another file—such as an HTML file, an XML file, or another SWF file—Google may index the contents of those files, but they won’t consider that content to be part of the content in your Flash files.
* Google is currently unable to index the bidirectional language content (for example, Hebrew or Arabic) in Flash files.
Note that while Google can index the content of Flash files, other search engines may not be able to. Providing text-based equivalents of these files can help other search engines crawl and index your content. In addition, a text-based version of your site will let viewers using older browsers or mobile phones access your content easily.
More about this you can find from the following sources:
http://googlewebmastercentral.blogspot.com/2008/06/improved-flash-indexing.html
http://searchengineland.com/google-now-crawling-and-indexing-flash-content-14299