I don't work for lumber yard, so don't think I have something to gain. I personally think it would be a TERRIBLE idea to try to do this on-line. I've built four spec homes in the last three years and am currently building my own house and could not even begin to think how I would have handled deliveries, returns (bad lumber is very common these days), and ideas for better building without a local lumber yard. Trust me, you can get good pricing from your lumber yards, you just have to be smart about it. You need to shop and negotiate, but in the end, you'll be happy you stayed local. Good luck.