If you want to load a .mobi eBook file you have purchased from a source other than Amazon.com onto your Kindle eReader, you will need to sideload it. Sideloading is simply a fancy term for copying an eBook file from your computer or email account onto your eReader. You and your approved contacts can send documents to your registered Kindle devices, free Kindle reading applications, and your Kindle Library in the Amazon Cloud by emailing them as an attachment to your Send-to-Kindle email address. Your Send-to-Kindle email address is a unique email address assigned to each of your Kindle devices and free Kindle reading applications upon registration.
Posted in: eBook FAQ