YouSendIt lets businesses, professionals and consumers move big files. If you know how to use email, you can easily use the YouSendIt service. YouSendIt currently has over 9 million unique monthly users across 220 countries, over 6,500 paid users, and over 1 million registered users. More than 400 million files have been transferred using the service and YouSendIt is transferring over 30,000 gigabytes daily.