eCards are cool for your visitors to interact with their friends and make advertisement for your website! 
With this PHP-Script, you can upload your personal eCards (PNG/GIF/BMP/JPG/…..) via the included Admin-Panel and your visitors can share them. Some hoster are restricting the use of the mail()-command. Ask your hoster for further information.
Demo: http://www.john-welt.com/etc/envato/PHP-eCards/demo/
Demo (Admin-Panel): http://www.john-welt.com/etc/envato/PHP-eCards/demo/admin.php
Main Features:
1. No MySQL needed
2. Documentation included
3. Integrated Updatechecker
4. Valid HTML & Easy to install
5. Admin-Panel with Password Protection
6. “Reply-To”-Header is supported
7. Own sender addresses are supported
8. Easy uploading mechanism
10. Change Logo & Wallpaper with one click
11. See how many eCards were sent (and which ones!)
Enjoy!