Whitey - 1:01 pm on May 20, 2011 (gmt 0)
Contact page? It is important!
Absolutely ... and it likely needs to correlate to the WHOIS and company registration numbers etc. It's just one of the standard trust elements Google would be routinely checking. You won't find too many spammers putting out real contact details.
This is a problem for business with multi national virtual regional presence to overcome, where it makes no business sense.