Updated: From the answer to this question about "Ajax generated content, crawling and black listing" I found this document about the way Google crawls AJAX requests which is part of a collection of documents about Making AJAX Applications Crawlable.
In short, it means you need to use ...
rather than ...
and then supply a real server-side answer to the URL path/to/path?_escaped_fragment_=data
.
Also consider a tag to supply crawlers with a hint to SEO-friendly content. , which this article explains a bit, is a good candidate
Note: I took the answer from: https://stackoverflow.com/questions/10006825/search-engine-misunderstanting/10006925#comment12792862_10006925 because it seems I can't delete mine here.