I like the Bracko method, and how he has shown that this is the type of skating method used by the fastest skaters in the NHL. He is different than most traditional figure skating based coaches, in that he doesn't believe in a complete foot return, and prefers a wider stance, with deep knee bend, a full extension, and a fast stride recovery rate. He further emphasizes a more side to side arm swing, one that follows the angle of your leg push, so that it propers the same momentum path. Stamm, and others insist on a front to back arm swing.
As other posters stated you need a deep squat, but also think about bending your ankles, not your knees. I picked this up from a power skating coach my son had. He said that you can bend your knees without bending your ankles, but you can't bend your ankles without bending your knees. It's a different coaching cue that worked wonders for my son.
The worst skaters stand up to straight, and often lack mobility in their hips and ankles. don't forget to stay mobile in these areas. Specifically for your ankles work on a slant board for calf and achilles flexibility. Also consider not lacing up your skates to the top. It may take some getting used to, and to get stronger in your ankles, but they will be more mobile, allowing you a deeper knee bend.
Here's a video of wide stance skating.
https://www.youtube.com/watch?v=BJ1vJ9nx6bw