I really like iPhoto's indexing, book and slideshow features, but one has to admit that its web export features really lack. BetterHTMLExport slightly improved this by giving templates and better layout to the export capability.
Gallery is by far superior for people wanting to manage on-line pictures, captions, etc. What I was really out for is an "export to Gallery" feature from within iPhoto ... and yes, after a little bit of googling I found iPhotoToGallery. While still in its infancy, it could use some mileage, feedback and help from the macosxhints community. Check it out!
[robg adds: If you haven't used Gallery before, it's a very powerful and flexible PHP-based online image management system.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20030906115501554