Is there an online reading club for tech articles and books?

I saw the post of the Apple security PDF. By the time I saw it there were already over 100 comments. I am sure some people had time to read it in detail before commenting, but I am also sure that many (like me) did not.

For more detailed papers like that I wondered if there was an online community which works like a book club. For example the link to the PDF would be posted. Then a period of 1 week would be left for people to read in detail. Then a discussion would start. I think this would add lots of value, as the discussion would be more in depth. The same principle could apply to CS papers, tech books, etc.

If this doesn’t exist I guess I could build it.