During the course of your visit to this site, the pages you view and files that you download are logged with the IP address that your request came from (either your machine or a proxy of some sort) as well as the referring webpage (if any). This information is retained for a maximum of one year (weekly rotations, 52 total). Generally, these logs are not examined by a human being; however, the data is parsed occasionally to obtain site statistics.
Also during the course of your visit, a cookie may be set for the duration of your web browsing session. This cookie is not used to track your browsing habits.