Josiah has some dry, crusty skin on his scalp, and after a quick yahoo search (yeah, I'm old school) I discovered this was the famed "cradle cap." It's totally normal, but because I'm a new dad and a bit paranoid about baby's health, I want to fix it. I've read that olive oil and baby oil massaged into the areas will relieve the flakes and that I'll simply brush it away.
But don't believe everything you read on the internet: we read a post from someone who SWORE that vegetable oil was the best remedy, so we tried it. Not only was the application nasty, but his head smelled like a McDonald's fryer. I think we'll stick to baby or olive oil next time.