This is a really fun segment of Science Friday:
Modern Humans Still Evolving, and Faster Than Ever
They talk a fair bit about Denisovans (den-EE-so-van) which are a newly discovered group of humans, that like Neanderthal have interbred long ago with homo sapiens, and parts of their genomes still exist as part of the genomes of some of us.
http://en.wikipedia.org/wiki/Denisova_hominin