I've been on many websites recently where unblockable popup appears ontop that makes the rest of the screen turn a dark grey but slightly transparent, and this is normally used to build a subscriber list. What sort of popup is this called? Because I'd like to make one for my site, but I don't know what to search for on google, and due to all the crappy 'buy this pop up code for $50' sites, its hard to digg through to find what I want.
If you want such ads then search for page peel away ads or javascript popup maker ads. Regards, ASHISH THAKKAR