swf
SEO love for Flex/Flash RIA's
Adobe teamed up with Google and Yahoo! to "enhance the searchability of SWF content by helping their spiders playback SWFs in the Flash Player runtime. The project runs SWF files within web spiders and allows all contents within a SWF file to be read by both major search engines. The cool part is that this also covers dynamic data loaded in from requests to a server, these are typically ignored in both AJAX and SWF applications.

