[sangnoir]

The sponsored content/"native advertising" is the next logical step. It can range from "product placement" in otherwise regular articles, to full-blown advertorials disguised as regular articles. No DOM-structure to block, no layout clues and very non-obvious to humans. I consider these to be more insidious than current ads that most are eager to block

[dorgo]

What we see here is evolution of advertisement. From low quality spam-like ads to higher quality advertorials, which must provide some usefullness to the reader in order to carmouflage as normal content and to attract attention. I work in a marketing agency and there is a big shift from Adwords + SEO to "content marketing". Big money is put into creating interesting or funny stuff to attract attention (and backlinks).

[teddyh]

If the content is sponsored, this fact must still be disclosed according to FCC regulations. These disclosures could be detected. In fact, there is already a Firefox extension to do this: https://addons.mozilla.org/en-US/firefox/addon/addetector/