I work for a company selling mailing lists. We use PPC to drive traffic to our sites for lead generation. We have oodles of data from over 4 years ago, however, we haven't had a chance to analyze it. Recently, we looked at our sites, and were shocked to see that the bounce rate was between 50-70%!!! I'd like to know why, and if I can; improve that. (Unless that's standard?) One of the things I am researching is using a popup to engage the customer, and incentivize them to stay. It's against Google's TOS in adwords to have a popup in the landing page. We recently found a new potential way to do it using an "onBeforeUnload" javascript command. It looks pretty slick, and has been used by some mainstream companies already. My question is, is that against Google's TOS?