The Google Webmaster blog has a post today about how to develop search engine friendly sites, even though they use Ajax.
Note that the static link's URL has a parameter (?foo=32) instead of a fragment (#foo=32), which is used by the Ajax code. This is important, as search engines understand URL parameters but often ignore fragments.
Basically, the code fragment above presents a static link to the search engine, but still follows your desired Ajax path through the use of the onClick function.
Our own advice to people who want to build tools, or have other interesting uses for Ajax, is that it's a great thing to do. In the increasingly social web, usability and site experience is playing a bigger and bigger role in driving traffic, and yes, in driving links to the site.
Don't be afraid to leap in and create such tools. Just make sure you still leave a trail that the crawler can follow.
The Original Search Marketing Event is Back!
SES Denver (Oct 16) offers an intense day of learning all the critical aspects of search engine optimization (SEO) and paid search advertising (PPC). The mission of SES remains the same as it did from the start - to help you master being found on search engines. Early Bird rates extended through Sept 19. Register today!