Amazon has launched a new desktop app for Windows that allows you to quickly send compatible files from your computer to your connected Kindle device.
The app is named Send to Kindle for PC and it is available as a free download.
Sending files to Kindle is free over Wi-Fi. If you are not using Wi-Fi, Amazon Whispernet charges would apply.
Following file formats are supported:
Microsoft Word (.DOC)
Microsoft Word (.DOCX)
JPEG (.JPEG, .JPG)