Greg Laden has written some useful posts over the last few days on natural selection. This post deals with how to define natural selection and deals with some common misconceptions on the topic, and this one covers modes of selection. There’s also an interesting post of whether humans are still subject to natural selection.
So head on over and check it out, especially if you want to be able to do the following:
Make erudite and opaque comments to creationists that will get you points with your web friends. Write really tricky Multiple Choice Exam Questions if you are a teacher. Evolve more efficiently towards your ultimate goal because you will be more in control of the Random Evolutionary Process (only kidding on this third one…)