Forum OpenACS Development: Re: OpenACS sucks on Google!
As for indexing pages with query variables, google definitely does, although it limits the number of pages it gets this way according to their information for webmasters:
1. Reasons your site may not be included.
Your pages are dynamically generated. We are able to index dynamically generated pages. However, because our web crawler can easily overwhelm and crash sites serving dynamic content, we limit the amount of dynamic pages we index.