I(2) Drive is an online storage solution that allows personal and corporate users to manage their important information from anywhere. It provides client and server software for accessing and sharing files through a Web interface and WebDAV clients either as a hosted service or an in-house install.
Copper is a Web-based project management software tool designed to help creative teams manage clients, projects, tasks, files, budgets, and events. It has an HTML/AJAX front end. It is available with full source for a licence fee or as a SAAS hosted service (compatible with iPhone, but available via PC/Mac/Linux and a Web browser).
Docpile is a PHP-based document management system that allows multiple people to share documents and keep track of revisions. Users can upload and download documents, grant per-file, -user, or -folder access privileges, and send notification emails when documents are being updated. Administrators can create access groups, each responsible for a different set of folders and users.
AudioLink is a tool that makes searching for music on your local storage media easier and faster. Your searches can include a variety of criteria, like male artists, female artists, band, genre, etc. It is flexible: you can use a command line interface or your choice of multiple GUIs, design your own search criteria, etc. You can search MP3 and Ogg files and use AudioLink to categorize your music collection.
The McNucle server software turns your Mac into an easy to use fileserver. Choose a file, generate the link, and send it to your friends. Your folder is presented to them in a handy Web page. You and your friends can now browse, preview, and download the files on your Mac from any Internet-enabled computer. Since you don't upload files up front, the amount of files you can present is virtually unlimited.