Part of my job is teaching students effective search tools on the internet. There are many tricks that help students hone in on a topic with relevant, reliable information.
A second level of research is to check out the websites reliability. There are a few ways to do that:
ScoreInTheBox uses a unique formula which consists of page rank, banklinks, and popularity to calculate a score for each website entered.
Free web traffic metrics, top sites lists, site demographics, hot urls, and more
Find out whois record, site stats, site profie. registration and more.
Website Grader is a free seo tool that measures the marketing effectiveness of a website. It provides a score that incorporates things like website traffic, SEO, social popularity and other technical factors. It also provides some basic advice on how the website can be improved from a marketing perspective.
One of these tells you the value of your website. Click around and figure out which one it is.