First off, the search appliance data is owned and kept by the customer, with their firewall, and so not even technically possible for Google to use that for advertising purposes. Further, other Google products for business (think Google Apps Premier) share the same no-ads pricing models. And Google doesn't actually use user profile data to target ads - check the privacy policy.
Regarding MSN gaining market share on Google, it took about 8 seconds to find this link. Check out the trend graph at the bottom to see Google continuing to take from MSN (and everybody else).
First off, the search appliance data is owned and kept by the customer, with their firewall, and so not even technically possible for Google to use that for advertising purposes. Further, other Google products for business (think Google Apps Premier) share the same no-ads pricing models. And Google doesn't actually use user profile data to target ads - check the privacy policy.
http://searchenginewatch.com/reports/article.php/2 156431
And somebody's done open source Sharepoint integration: http://code.google.com/enterprise/opensource/index .html