I think the claim that Google results are natural based on algorithms is pretty much debunked.
Google has stated that they hand manipulate results and that includes placing their own links at the top of SERPS.
This will be further weight to the government charges of a monopoly that is abusing its position.
The European Commission in November started investigating whetherGoogle is illegally directing users of its search engine to websites it owns or is affiliated with and whether Google is stopping websites from accepting competitors' ads.
[edited by: frontpage at 12:41 pm (utc) on Mar 17, 2011]