Bordeaux is a Wine GUI configuration manager that runs winelib applications. It also supports installation of third party utilities, installation of applications and games, and the ability to use custom configurations.
TexLexAn allows you to drag and drop a document or a link to any Web page to analyze. The program will analyze the text, evaluate its readability, categorize the document, summarize it, and archive it.
PlayaPlaya is a "fire-and-forget" audiobook player that stays out of your way and just works. Logout, and it'll save your place. Launch PlayaPlaya again, and it'll resume where you left off. Launch it with different playlists, and it'll track each one separately.