I subscribe to a newsletter on Computer Issues called 'Langa List'. There's a free version - with ad's (not pop-ups) and a subscribe version with extra data and no ads. They have had quite a few articles on the subject in recent times, so if you want to check out the pro's and con's of different anti pop-up programs you could read a few of their articles. Go to
www.langa.com and do a google search of the 'site' (not 'web') with the subject 'pop up' and read all about it ... or just click here;
http://www.google.com/search?sourcei...com+pop+up</a>