Hi everyone....new here. My site has been #1 on Google for 2-3 searches over the last 3 yrs...in an increasingly competitive industry. There are a number of things I am doing to maintain that position but I was wondering just how much weight is given by Google in it's algorithem (sp) to a site that has been 'live' on the net. My site first went live in 2000 and was one of the first in the entire industry (painting). Can anyone actually take an educated guess as to the weight given, in percentage form?

Thanks ahead of time
rick