Note that many websites have their own advertising, unrelated to adware.
Advertismen deliver its own advertisement or third party advertisements to user's machine.It drops third party advertisement software on user's machine without their knowledge.
From the EULA,
A program that display advertisements in a pop up window or directly inside the browser window.It adds discreet advertisements to your Internet Explorer, Netscape, Opera or Firefox browser windows that will display links to internet tools and pages.
You allow that third party software may be installed with the Software and that advertismen.com shall not be liable to anyone with respect to such third party software.