Michael has put together a really sweet in-depth run down of designing a PCB. If you’ve never designed your own circuit board but you have done some breadboarding then you need to get with the lingo. What the hell is a blind via ? Go check out the article and find out. If you’ve made boards before, there still might be some tidbits that you didn’t know or at the least take in some of Michael’s process for visualizing how the board is going to go together before laying it out.