I try to boycott as many sites that use Taboola as possible... this can leave very few sites left to visit without hating myself... Them and Outbrain have to be the absolute worst that I see on "reputable" sites. You begin to truly understand a site's revenue integrity when you see these in their "Sponsored Content" sections.
This is why I personally don't like using an ad-blocker.
If I have ads blocked, then I'm blind to the problems that the average internet user faces. I end up viewing, reading, tweeting, talking about sites that are flat out reader-abusive in their advertising. As a web developer, my sense of the state of the internet is warped.
With ads turned on, I end up avoiding those sites and seeking quieter places. I have a better understanding of what normal people see.
I would like it if that were a tenable position, but it's really not IMO. There's too much cross-site tracking, and most importantly, too much malware distributed as advertising.
