Digital Privacy You can opt-out of digital tracking and targeted advertising at the below link, affecting 115 digital advertising companies. While Google and Yahoo and a handful of larger companies have their own portals, the rest can be turned off here -- start with the Turn off all companies button and then mop-up the rest manually. Note, this does not reduce the number of ads you will see, it only registers the request not to store and use your browsing behaviour to select which ads are shown. Remains to be seen whether the ads in fact become more random.
http://www.youronlinechoices.com/uk/your-ad-choices
Digital Privacy Here's a central place where you "opt-out" of digital behaviour tracking and targeted advertising, by 115 digital advertising companies. (Google has their own portal, as does Yahoo and a few others, but the rest can be turned off here -- click the Turn off all companies.) Remains to be seen whether the ads become more random. http://www.youronlinechoices.com/uk/your-ad-choices