Joel Spolsky has put together a book of his favorite writings on Software called Best Software Writing I. The quality of those articles are pretty high and they are recommended to anyone who is interested on computer software. The good thing about it is that most of the articles inside the book can be found online for reference. Neil Kandalgaonkar has spent his efforts on finding the originial sources of the book from the web.
Joel Spolsky has compiled a book of essays on software, which he calls The Best Software Writing I. He released the chapter listing in June 2005, and I noticed that a lot of them were blog posts that I'd read before. I wondered how much of the book was taken from online content. A few minutes of hacking later, and a programmed equivalent of Google's “I'm Feeling Lucky” had found every single chapter.
Go to Neil's site to get links on each chapter. If you like the authoritative version or printed copy of them, be sure to get the book Best Software Writing I.