Data points that Facebook uses to target ads
"perfectly targeted ads"? Never had that experience.<p>Even if I summarize all the analytics solutions out there, like ads, Facebook stream, Youtube, Amazon, Netflix. What they usually do is they figure out what I did in recent history or in general and present me more of that. I don't know about other people, but that's absolutely not what I want. That's boring, or maybe even unnecessary.<p>Like, if I just bought a book about Linux system administration the only reason I would buy a second one would be because the first one sucked (and Amazon knows the ratings of the books). A reasonable suggestion after that would be something people do with Linux, like hosting a Wordpress blog. Honestly I might not even know what I would do with my newly acquired skill once I succeeded with that topic. Also it's quite tiresome to learn. Maybe after reading 30% of it I would like to insert a simple but interesting novel or comic book. Why not suggest something like that to me?<p>Or I just watched an action movie on Netflix. Then I don't need other action movie suggestions. After that maybe I want to watch a character focussed tv show.<p>What we need is not a "I know what you did and here is more of that" suggestion engine. What we need is a "oh that's getting boring, here is other awesome stuff that may surprise you" suggestion engine. Figure out the stuff I don't know I want and then suggest that.<p>And honestly, not a single of these billion-dollar-engines out there do that for me at the moment.