Here, I'll try to keep up with what's new and also classic in this fascinating field of knowledge. If you know something of population genetics, you may be imagining this will be a bunch of numbers and equations pilled up in between incomprehensible pieces of text. This is not the idea and - quite frankly - this is not my approach towards pop. gen. either. I actually hope that my intuition-based approach can make you more comfortable with this amazing science.
Also, this blog has a Portuguese-speaking companion here. In principle, everything you'll find here will also be available there, and vice-versa.