KISSpics is a very, very simple class that provides a webgallery of pictures and their descriptions. From a users point of view it works like this:

• create a directory (defaults to 'pics/')
• place pictures into the folder
• optionally create a text file (name does not matter, but it must end with the suffix .txt). Inside the text file you can add descriptions using the notation "picture_filename: description" one per line. Example: "foo.png: a simple picture of a foo".
• inside your code create a KISSpics object ($kp = new KISSpics();), optionally specifying the target directory in the constructor.
• use a foreach to go through the $kp->pictures array. Inside the array there are objects with properties url (the url to the picture) and description. First description would thus be $kp->pictures[0]->description. Use your own HTML to format the gallery the way you see fit.

For an example see here

...and it's using KISSlibs for its news. It reads them from my personal blog (KISSlibs category). Just one example of how easy it's to bend the libs to do your bidding.
And the libs are under the LGPL now! Merry Xmas everyone.