DokuWiki is a simple to use and highly versatile Open Source wiki software that doesnt require a database. It is loved by users for its clean and readable syntax. The ease of maintenance, backup and integration makes it an administrators favorite. Built in access controls and authentication connectors make DokuWiki especially useful in the enterprise context and the large number of plugins contributed by its vibrant community allow for a broad range of use cases beyond a traditional wiki.
Mayan EDMS is an electronic vault for your documents. With Mayan EDMS you will never lose another document to floods, fire, theft, sabotage, fungus or decomposition. Its advanced search and categorization capabilities will help you reduce the time to find the information you need.
Open Monograph Press is an open source software platform for managing the editorial workflow required to see monographs, edited volumes and, scholarly editions through internal and external review, editing, cataloguing, production, and publication. OMP can operate, as well, as a press website with catalog, distribution, and sales capacities.
Perkeep (previously Camlistore) is a set of open source formats, protocols, and software for modeling, storing, searching, sharing and synchronizing data in the post-PC era. Data may be files or objects, tweets or 5TB videos, and you can access it via a phone, browser or FUSE filesystem.