Interesting compromised system through an advert company
(link is safe) its just a advert company.
Seems that this company is being used to grab your info and send links out via forums/websites that have signed up with this service.
I guess you need to watch out what forums you sign upto now, as forum owners could be using crowdgather.com to sell your contact info or, possibly a compromised site used this service to get my email and trying to get me to visit another compromised site.
I know its some forum I signed upto, as it has one of my user names in its message.