or instagram 103rd party truckers are following my every move this is the unpleasant truth behind strecker. cookies can be made visible with specialized software for example with firefox is free plugin might be. small triangles represent cookies the circles are web pages. it's look at all this $217.00 trackers on 12 site trick 3 that's nearly 20 trackers each fast. will meet often a little bit on what's interesting is that they're all linked it is fun and. for. these masses of data that increase with every click are of particular interest to the advertising industry advertisers make their money with personalized data and individually tailored commercials targeted ads based on a detailed analysis and user data make 90 percent of google's revenue and 95 percent of facebook's. the thing that i think people miss about this is that the more data is available the more i can persuade you the way i want you to be persuaded. and what to users get from it mostly free access to an app not a good deal 2. in 2019 the big data and business analytics industry expected to have a turnaround of nearly $1900