On July 1, 2007, electronic registration on the U.S. Copyright Office website was made available to the public. The eCO Registration System (“electronic Copyright Office”) offers numerous advantages over traditional paper filings, such as faster application processing, online status tracking, significantly lower fees, more payment options, the ability to upload certain types of works as electronic files, and, of course, the convenience of doing all of the above in your pajamas, if you are so inclined. From the History of Copyright Timeline at the U.S. Copyright Office.