Zip Exporter is an export plugin for Lightroom 2 or higher that allows you to create a Zip archive of images and videos via Lightroom Export feature. The archive may be password protected for extra security.
The resulting Zip archive can also be uploaded to an FTP server.
Donating and Updates
The trial version is limited to zipping 3 images at a time, and donating towards this project will give you a registration code that will remove this restriction. All future updates are free.