2do is a simple to-do list manager written in PHP and using a MySQL database backend. It supports unlimited numbers of projects, has templated HTML allowing for complete customisation, and can be publically viewable by all, or can be protected by passwords. Administration is done via simple Web-based forms.
The ATLAS (Automatically Tuned Linear Algebra Software) project is an ongoing research effort focusing on applying empirical techniques in order to provide portable performance. It provides C and Fortran77 interfaces to a portably efficient BLAS implementation, as well as a few routines from LAPACK.
Activity Manager is a project management tool that is simple to use, lightweight, and very efficient and customizable. It features collaborators repository administration, tasks repository administration, contributions management (activity management), and an extensible report facility (with built in templates). It allows you to build and maintain a hierarchical task tree. It is based on a database with a very simple model that allows quickly building custom reports through the report facility or through simple SQL requests.
Amazon S3 Stream Wrapper is a PHP class that acts as a stream wrapper that can be used to get and send files to Amazon S3 (Simple Storage Service). It sends HTTP requests to access the Amazon S3 Web services API in order to store and retrieve files just by using fopen('s3://...') calls and using regular fwrite and fread functions to send and retrieve file contents from Amazon S3 servers. This stream wrapper class can also delete files, and create, list, and delete directories.