Uploading your photos to your Mac isn't enough these days. If you want to share them with all your friends then a web album is your safest bet. Galerie makes this an easy, three step process. Select your images from your photo viewer, adjust the settings in Galerie and generate the web album. The application offers simple interface for beginners, but most people should feel comfortable with the original one. Galerie allows you to select and adjust thumbnails and tweak picture settings. You can also regenerate old galleries in one go.
Galerie offers a number of templates, with more available on the developer website. However, we weren't really convinced by any of them. Most of them were of rather poor quality and the browser previews left us rather unimpressed.
In all, a simple application but you'll probably find most photo sharing websites create nicer looking web albums.