A much nicer editing mode for JavaScript. I had actually been using C-Mode in preference to JavaScript-Generic mode, which on GNU Emacs Windows, did not even support automatic indentation. But this mode seems to be under active development and have tons of useful features. Yet another perk of JavaScript finally coming into its own among Web languages I guess. Yay.
"Exhibit is a lightweight structured data publishing framework that lets you create web pages with support for sorting, filtering, and rich visualizations by writing only HTML and optionally some CSS and Javascript code."