RJAX (Reverse aJAX) lets the web server push data to the browser. RJAX maintains an open connection between the browser and the server using an applet in the client page. The server can execute javascript commands directly on the client.
Facets is a web application framework that leverages a simple MVC architecture for the server side and a feature-packed Javascript component model for the client. The two pieces are designed to be seemlessly integrated for very dynamic AJAX-style apps.
The goal of bookman is to implement a network based service for managing and distributing bookmarks transparently from a central server to any bookman-enabled client software (curently focussing on Mozilla, IE and Opera).