hey beachbum,
Personally, I have a a warning page on my blog.
Firstly because I'm making sales, and I really don't want to have to take my site down for not covering my ass against underage viewing etc.
Secondly, alot of my outgoing traffic is linked directly from my warning page. It seems that advertising is taken notice of moreso when girly bits arn't a distraction.
but thats just me
