Wikepage is a very small wiki/blog/personal site builder. It uses flat files as a database, so no extra database is required. It has i18n support, multi-language site support, password protected pages, table support, CSS styling, file upload, RSS output, and a lot of other features.
Pootle is a Web-based translation and translation management tool. It provides a rich set of features for mangaging a translation project. It integrates components of the Translate Toolkit to provide error checkers for translation messages and the ability to download files in a number of formats: PO, XLIFF, CSV. Pootle can also provide compiled PO files for download. You can use it to assign work to translators in your team, and you can define goals to help focus the efforts of your translation. Pootle can run without a Web server or be proxied through your existing Apache server.
Roundcube Webmail is a browser-based, multilingual IMAP client with an application-like user interface. It provides the full functionality you expect from an email client, including MIME support, address book, and folder manipulation. High extensibility is granted by the plugin API and the user interface is fully skinnable using XHTML and CSS 2.
iGetter is a full featured download manager and accelerator. It can greatly improve the speed of your downloads using segmented downloading. In addition, it allows auto-resume on broken downloads, queue filtering by various criteria, site exploration, searching of mirrors, integration with the FileAvenue.net Web service, CD burning, scheduling downloads for low traffic periods, auto-redial on broken connections, auto hang-up and shut down on completion, and much more.