I was thinking about making my site dynamic through PHP, and AJAX. For example I would have one page called 'movie' and depending on what link you click it loads different data into the page i.e. movies, comments. Will doing this destroy my search engine visibilty or can crawlers see that I have many pages even though it is just one dynamic page? Isn't this what 'YouTube' does? Like: http://www.youtube.com/watch?v=et_MmlTxMXA&feature=popular Isn't the ? to read dynamic data? Thanks for any info you can provide. ~Imozeb
Google can only read limited parts of those file types. Although, I would suggest moving away from the Flash for sure, the video reading capability is still extremely limited. This is why transcripts are allowed too. Plus, you probably do want the pages requiring parameters to be crawled. If you do you should make sure you place the parameters in the webmaster tools list of parameters. This will prevent duplicate content issues and provide better results.
Dynamic URLs can cached in search engine's cache. So, they can read by crawlers but this is not possible in case of flash..