blindRSS is a very simple browser-operated RSS reader. You can click through the feeds in a sidebar, use the (hopefully self-explanatory) icons next to them to manipulate them, and do all the other stuff a RSS reader should do. It's programmed so that the feeds are reread by a cronjob or daemon, while as much functionality as possible is done within the client. Thus, the server only serves the data, not the markup.
Werc is a minimalistic RESTful Web application framework and content management system. It follows the Unix "tool philosophy" and it is designed to be fast, simple, convenient, and easily extensible. It handles both small and big sites and has a flexible system for user and group permissions. All data is stored in plain text files that can be easily manipulated with standard tools, without using any databases or other external dependencies. Existing applications include a blogging engine with RSS/Atom feeds, a wiki system that can easily integrate pre-existing documents (can be enabled for any directory tree), and others.
phpass is a portable password hashing framework for use in PHP applications. The preferred (most secure) hashing method supported by phpass is the OpenBSD-style bcrypt (known in PHP as CRYPT_BLOWFISH), with a fallback to BSDI-style extended DES-based hashes (known in PHP as CRYPT_EXT_DES), and a last resort fallback to an MD5-based variable iteration count password hashing method implemented in phpass itself.
MyPhotoAlbum is a simple, small, easy to use web photo album. It allows the user to create albums/categories and upload pictures with titles and comments, and keep the albums in several languages simultaneously. The title and comments are stored in plain text files. No database server is needed. MyPhotoAlbum uses CSS for its web formatting to have maximum control over its look and feel. It has a main screen that shows the photo albums. On each album screen, thumbnails with titles and comments are displayed. Clicking on the thumbnail will display a pop-up with the picture full-size.