FDesktop
FDesktop is a web-desktop based on javascript/css. Provide an interface for web applications and include windows, alert and confirmation dialogs, among others.

PHP Ajax Grid
A PHP library by http://www.freelance-soft.com that allows you to create html tables from a mysql database ( DataGrid ). Supports sorting, paging, inner joins, left joins right joins, where conditions, drop down lists in cells, customization by css, etc.

Web File Manager
A web/php/javascript/ajax file manager that allows create, delete and rename files and directories located in de server.