NORM is a simple ORM for PHP. It works with PDO and MySQL. Unlike other ORMs, NORM is neither complicated, convoluted, nor daunting. You can easily throw a regular object at NORM, tie in a couple other objects to relate to it, store it in a database, and return it as a regular associative array or regular object that you can toss into JSON output or a template. It lets you create and store your objects without worrying about SQL, since NORM takes care of building and managing database tables.
YMSG is a PHP class that can be used to send messages and manage Yahoo! Messenger accounts. It can connect to a Yahoo! Messenger server, authenticate as a given user, and perform several types of operations on behalf of that user. Currently, it can get the user buddy list, add a new buddy, deny a new buddy request, send a buddy request, remove a buddy, get an user avatar URL, and send a private message.