If you've ever wanted to just listen to a particular YouTube video at your leisure as an mp3 file, this application may be just the thing. Visitors simply need to install the program and drop the YouTube URLs in question into a box. The application will convert the files into the mp3 format. This version is compatible with computers running Windows XP or Vista.

Pandoc bills itself as "a universal document converter." It can read input files in nearly twenty markup formats (including Markdown, reStructuredText, textile, and HTML) and convert them to over forty other formats (including docx, odt, epub, tei, and many, many more). A diagram of the built-in conversions is shown on the bottom of Pandoc's "about" page. These format conversions can be used to...