So I run a website on a huge LAN that has .htaccess to block all IP's except for the LAN range. What ads can I throw up on it? Adbrite's policy says they need to be able to view the ads.
You could see what adtoll say. I think you'll find most networks will need to be able to see the ads, so they can make sure the publishers are actually showing the ads that advertisers have paid for. -- Phil