Keep getting pop ups on google chrome

My computer has windows 7 and for a few months now I get pop-ups whenever I'm on the internet, using google chrome. I installed Spybot search and destroy a while ago, and I've used it regularly to remove the adware it finds, but I'm still getting pop-ups. I also ran Malwarebytes anti-malware and that program did not find any threats either. I also already have Norton antivirus on my computer.

I'm looking for information on what is causing the pop-ups and what I can do to get rid of them. Thank you!





via Bleeping Computer Last 20 Posts http://www.bleepingcomputer.com/forums/t/483018/keep-getting-pop-ups-on-google-chrome/