The Mindful Geek (http://a.co/egwKvoo) could be a good starting point for the HN crowd. I'm about halfway through it and I enjoy the no-frills explanations of various meditation techniques.

In my experience, the most difficult part is keeping the practice in my daily routine. Just like with exercise, it's easier to absorb it into your lifestyle if you have a coach or a group of people with which you regularly train.