Hmm... four times now, I've had a security warning notice show up with the ads on Insimadult. Each was an attempt to open Microsoft Outlook.
The latest came from 80.93.59.108, which resolves to colo.moscow.peterhost.ru. It sounds like AdBrite needs to be more careful about whose ads they are distributing.
For what it's worth, we are now blocking all traffic from that server.