MoinMoin is an easy to use and extensible Wiki engine implemented in Python with a large community of users. MoinMoin's storage mechanism are flat files and folders, rather than a database. This makes it easy to manipulate the content in a text editor on the server if necessary, including managing revisions if the wiki gets attacked by spammers.

osCommerce provides everything you need to get started in selling physical and digital goods over the internet, from the Catalog frontend that is presented to your customers, to the Administration Tool backend that completely handles your products, customers, orders, and online store data.

The Gallery Project (and more recently Gallery Revival) is a web application enabling management and publication of digital photographs and other media. Photo manipulation features includes automatic thumbnails, resizing, rotation, and flipping, among other things. Albums can be organized hierarchically and individually controlled by administrators or privileged users.

eZ platform (formerly eZ publish) is a web content management system that supports the development of customized web applications. It features professional and secure development of web applications, content versioning, media library, role-based rights management, mobile development, sitemaps, search and printing.