Airborn - Create and edit documents online without sacrificing your privacy
MySQL - The world's most popular open source database
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Mellel - Home Page for Mellel: The word processor of choice for scholars, writers and long document writing. for Mac OS X and iOS.
SQLite - SQLite Home Page