First off - taking good blogs and building anthologies should be more of a cottage industry. While the medium of the blog / essay is taking off, the power of consuming a corpus of curated articles shouldn't be lost. I'm in the middle of reading a few of these from blogs that I've perused casually, and it's been a great experience.
Following up on a perennial favorite, The Gervais Principle, Be Slightly Evil is a playbook for navigating a particular kind of environment. There are some good nuggets throughout, but as one might guess, the medium prevents a strong narrative flow.
Overall, the fundamental dialectic is the tension between an ideal and a tragic view of human nature:
"Now here is the paradox: idealism believes in change and creates unchanging human beings. Tragedism (to coin a word) believes humans cannot change their fundamental natures, yet believing in it actually transforms humans far more radically than the idealist view."
In one section, Rao attacks a idealist preference for non-zero-sum games with the concept that sometimes (and this is where it's "slightly evil") the right move is a zero-sum move. In another, he introduces the concept of "creating luck" by stacking the deck in favor of serendipity. And like Simon Wardley, he's a big believer in using the right tool for the job: sometimes fast following is a dominant strategy, sometimes it's a first-mover game.
Overall, I think that the highlights from this will enter my lexicon and change how I manage, but it didn't reach the level of some other blog-books I read this holiday season.