I'm a computer tech and thought I'd chime in. The ads may or may not be generating from this website. Make sure you get a good malware cleaning utility and update/scan your machine at least once every couple weeks.
I recommend http://www.superantispyware.com/
personally - both have free editions (DON'T CLICK ON THE 'PRO TRIAL') that work fine for manual scans every so often and are 100% free unless you sign up for any trials to their 'always running always scanning pro service'
Viruses were the big thing in the early years of the internet but now it's all Malware. Maliciously coded software that spams you with advertisements so that the people using it can make money off of you 24/7. The software runs hidden and you don't even know your machine is infected as typical Virus Scanners miss it.
If it is in fact ads on this website, there are programs you can install that block all advertisements or allow you to block specific elements of advertisements. However I can't go into detail as this is a free website and they make money from ads to pay the bills. If it is their ads hopefully they can get their web designer to make them less intrusive.