Note that many websites have their own advertising, unrelated to adware.
From the Website:
We automatically record the name of the domain (for example,"123company.com" if you use a private Internet access account, or "mycollege.edu" if you are connecting from a university's domain); the IP address (a number that is automatically assigned to your computer when you are using the Internet) from which you access our website; the type of browser and operating system used to access our site; the date and time you access our site; the Internet address of the website from which you linked directly to our site; and the pages you visit.
Should you send us an email about a question or comment; we will then have access to personal information such as your name and email address.
Sometimes we ask you to fill out surveys posted on our web site. These surveys collect demographic information such as age, gender, annual income, postal zip code, name, and the like.
WHY DO WE COLLECT THIS INFORMATION?
The non-personal information that we collect from you may be used for both internal and external purposes, in order for us to make your experience with our site more enjoyable. The aggregate data we collect from you is used internally and externally to help us increase our marketing efforts and to provide pertinent data to the members of our Internet family. We may also use your email address to notify of you other products or services you may be interested in. Your email address may also be used to contact you regarding a question or comment you submitted to our site.