Globs.org has developed Web iPhoto Access, which allows you to share your iPhoto Libraries over the internet. As soon as you have uploaded pictures or movies from your camera to your library, you want these pictures to be available to your friends, family or whoever. WiPhA provides a powerful, beautiful and easy to use web interface to your libraries as well as automatic photocast of all your albums. Moreover, people can easily download a bunch of pictures and import them in their own iPhoto library with your captions and comments (for your lucky friends also using Mac). Link to website
NOTE: I tried to set this up on my Mac Pro, and seriously it was a hassle. I have to change this, and modify that, on and on. I deleted the entire file, which was placed in my user account's website folder. Not for the average user. I'd rather spend the $99 and upload images to MobileMe to share.