WP List Detonator is the MOST POWERFUL List Building Plugin on the planet.
It scans inbound keyword terms from the search engines, and flips lead magnets to match those terms.
It also puts interactive ‘?’ beside keywords in your content. When a curious search rolls their cursor over the ‘?’ it pops up a lead magnet related to that ‘?
WP List Detonator will automatically trigger squeeze forms presenting ‘lead magnets’ that are directly relevant to what that unique subscriber is searching for.
This is extremely powerful as you are giving the site visitor what they are looking for.