I'm trying to convince a client that adding pop-up or pop-unders isn't worthwhile. The argument "pop-ups are annoying and your users won't return" doesn't work because it's not the kind of site that people will visit regularly -- just buy and leave.
I'd like to be able to look at the site's traffic data and point to the very high percentage of users who are using browsers which not only have pop-up blockers but have them turned on by default.
Can anybody provide a list of browser versions which have the pop-up blocker enabled in the standard installation?
Alternately, are there other good data points which demonstrate the ineffectiveness of pop-ups?