Official site includes project information, awards they have won, information about the company, job postings, and biographies of the people who currently work there. [Description from dmoz]
Valve Corporation helps gamers blow off a lot of steam. The company publishes PC and console games such as Half-Life, Half-Life 2, Counter-Strike, Team Fortress Classic, Team Fortress 2, and Day of Defeat. Its titles are available for console systems and portable devices from Microsoft, Sony, and Nintendo. Valve also licenses its Source game engine and Steam broadband platform (for the delivery and management of digital content), as well as providing gaming content to a network of cyber cafes. Founded in 1996, the company started off with a bang by publishing the highly-successful Half-Life in 1998. [Description from Hoover's]
We do not have enough information to provide a traffic estimate. When Quantified, this report will provide detailed, accurate audience information.
Index represents how a site's audience compares to the online internet population as a whole. An index of 100 indicates a site's audience is at parity with the total internet population.
The affinity numbers represent how likely a given visitor is to visit one of the listed sites or categories compared to the internet average. For example, an affinity number of 10.2 would say that a user on "X" website is 10.2 times more likely than the average internet visitor to visit the other site or category that is provided.
This website is Quantified, and the data displayed here is directly measured by Quantcast.
Addicts are the hardcore segment of a site's audience, who have 30 or more visits to that site in a month.
Regulars refers to a segment of a site's audience that frequent a site more than once per month but not as much as addicts who frequent a site 30 or more times per month.
Passers-by have a single visit over the course of a month.