In the initial testing of the survey, one fact that consistently appears in the results that rank in the top 10 are sites that have been around a long time. Obviously, these sites have had greater time to build links & content, but there appears to be little correlation between these items.

The data seems to suggest that age by itself is playing a role in how Google is ranking websites. I'll continue to look for other factors that could be a result of age that are influencing results, as age alone seems like an unlikely factor to build an algorithm around.