Highly recommended for those of you who have a webserver and a photo collection in digital form.
It is documented well, installing is easy, has neat configuration scripts, and some very helpful mailing lists.
Give it a try, Takes a bit of getting used to. some of the highly modified gallery installs are REALLY nice.
Another PHP based gallery is simply called Gallery , it is available from http://gallery.sf.net/.
Gallery is easily modified and is skinnable so you can integrate it into an existing website very easily.
Some other web based galleries are