Unless you are stuck in the last century, you will want to use the internet to as often as possible when searching for things you need. This holds true when searching for a phone number. Unless you love struggling with fat and clumsy books, I doubt that you would choose to flip through page after page of names and numbers just to find the specific phone number you’re looking for. Online phone books take all this tedious work out of your life by providing you with a one-stop source for phone numbers, addresses, and even directions with maps for the numbers you are looking up.