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As we referenced several times earlier in this chapter, Flash is popular on the Web, but each presents challenges to the search engines in terms of indexing the related content. This creates a gap between the user experience with a site and what the search engines can find on that site.
It used to be that search engines did not index Flash content at all. In June 2008, Google announced that it was offering improved indexing of this content (http://googlewebmastercentral.blogspot.com/2008/06/improved-flash-indexing.html). This announcement indicates that Google can index text content and find and follow links within Flash files. However, Google still cannot tell what is contained in images within the Flash file. Here are some reasons why Flash is still not fully SEO-friendly: