I will also put in my vote for pop up stopper. This is a great utility. One item of note on this issue is this. Do not set Pop up stopper to "aggressive settings". If you do this, the program will automatically close any new window you are opening if your current window is not 100% open(no activity). This can be annoying if you are the type to open multiple windows at once.
The most effective way in which you can elimate pop ups is by disabling active scripting. You do this in Internet Explorer. You go to:
Tools->Internet Options->Security->Custom Level(under internet)->scroll down to "Active Scripting" and put a dot in disable.
The above method will eliminate pop ups. However, it has its drawbacks as well. For example, I was not able to get my e-mail from hotmail with active scripting disabled.
I would try pop up stopper first. If you are still getting a lot of pop ups, try disabling active scripting.
[This message has been edited by Edwardo (edited 05 June 2002).]