Uhura is a Web console for databases. It works with MySQL, PostgreSQL, and FirebirdSQL. It presents trees that let you browse databases, tables, columns, constraints, triggers, views, and procs. It has panels for history and fragments. Its editor features autocompletion and autoindenting. It is easy to install.
Weboob is a project that provides several applications (console or graphical) to interact with a lot of Web sites. There are more than 90 supported Web sites and 20 applications to view bank accounts, get bills, drag on dating Web sites, search and play videos, display the weather, read news, show train timelines, search torrents, interact with bug trackers, edit a wiki, listen to radio, view and download image galleries, look for a new home, and perform other useful tasks.
Salut à Toi (or SàT: "Hi to You") is an XMPP/Jabber client with multi-frontends. You can use it on a desktop (Wix), with a console interface (Primitivus), as a command-line tool (jp), or on the Web (Libervia). A plugin architecture is used to make it modular. With SàT, you can perform all the expected XMPP functions (instant messaging, multi-user chat, file transfert, etc.), but you can also use your email client (MUA) to read and send your XMPP messages, play games, do microblogging, pipe Unix command results, make scripts, etc.