Is there a website that helps your baby sleep better?

Yes. Few things can tire you out more as a new parent than a baby who does not sleep well. While there is no magic cure for sleep, advice on ways to improve it are available. The website www.Healthychildren.Org, run by the american academy of pediatrics, has lots of good advice on all things children, including sleep. Good luck!
Great book. "The Newborn Sleep Book" It's worked for thousands of patients. If you want sleep, read the book.