Board Thread:ROBLOX help and discussion/@comment-5073073-20140504160836/@comment-3074565-20150412144212

Google Ads is based on the AdWords system, which gets info from Google Analytics, which tracks sites who you visit.

If you get innapropriate ads, well, then you are visiting sites with the same content.

The solution is to clear the cookies, cache, get adblock, and never visit those sites again.