I also end up reading pocket even though I hate it. I'm pretty sure the articles come from places like hackernews, reddit, and digg since I noticed overlap. Its basically an "aggregate aggregator". Android's Newsfeed that comes up my pixel phone is even more annoying because it seems to track everything I read using the same latest techniques they use for ads. If anyone on my intranet or a private intranet I have connected to likes to read something, they'll recommend that category of news to me. I hate it but I end up reading some of the news anyways since it does interest me...