Let's keep in mind that computer book publishers (like O'Reilly) have an interest in thrashing the knowledge base of programmers generally. Because it means mo

Let's keep in mind that computer book publishers (like O'Reilly) have an interest in thrashing the knowledge base of programmers generally. Because it means more potential book sales. Advertisers can be informative. But they can also be a big distraction of time & money & resources.