How many years did you register your domain name for?
If it's only one then that's a point against you in Googles eyes.
Because the majority of Spam websites only register a domain name for one year. A domain registered for a longer period implies that the owner is more likely to be legitimate and serious about their web site.
This is just one of the unusual factors now considered by Google when indexing and ranking a website. Factors you could never even have guessed at in some cases.
How do I know this?
Google have recently filed United States Patent Application 20050071741 on March 31, 2005.
Full Story Can Be Read @ Buzzle