Flash and AJAX are two technologies that enhance the user experience on a web site and are supported by almost every browser and operating system.  Only pitfall -- this technology is not SEO-friendly.

However, in early July, Adobe Systems Incorporated announced the company is teaming up with search industry leaders to dramatically improve search results of dynamic Web content and rich Internet applications (RIAs). Adobe is providing optimized Adobe® Flash® Player technology to Google and Yahoo! to enhance search engine indexing of the Flash file format (SWF) and uncover information that is currently undiscoverable by search engines.

This will provide more relevant automatic search rankings of the millions of RIAs and other dynamic content that run in Adobe Flash Player. Moving forward, RIA developers and rich Web content producers won’t need to amend existing and future content to make it searchable — they can now be confident it can be found by users around the globe.

BUT, a few technical bloggers out there say that the technology is not quite there yet:

Flash's New SEO is Over-Hyped by IckyDime

Flash indexing and SEO; Remember testing? by "Dion"

This blogger definitely has some sound solutions for Flash and SEO challenges: 

4 SEO Solutions for Flash by Benj Arriola

Best,

Denice MacDonald