Browsing over ARRSE recently it seems that some honourable members have been surprised that the ads in any particular thread match what theyre looking at or posting about. Many will know how this works, but for those that dont the displayed ads are typically browsing history context sensitive. In short, one of the most common context sources is a secure folder on your computer containing small files detailing your browsing history. When you load a page the files are scanned and ads will be shown based on your recent browsing activity (or the interests of your partner/kids/forensic officer). Another common context is simply taken from repeated words on the page youre looking at. If theres little context to go on the ads will be semi-randomly chosen, based on website demographic, location etc. So, if youre getting ads for Nazi-themed holidays for Welsh lesbian midgets then youre probably even weirder than you let on. Here are some ads Im getting right now. Of the three one is about right, one would only be of interest if everything else had failed and I was really desperate and near suicidal, and one is for an STD clinic. What ads are you getting, not just here on charming ARRSE, but on any site?