I disagree. Each of jgrahamc's articles he posted was useful and interesting in its own right, and would well qualify as a quality hacker news post. And if he w

I disagree. Each of jgrahamc's articles he posted was useful and interesting in its own right, and would well qualify as a quality hacker news post. And if he wants to plug his book on his own blog, I'm OK with that. However, I do think just posting the Amazon link to the book page on here is little more questionable, and might border on just blatant advertising (Unless jgrahamc has moreto add than just "Buy my book"?).