A firefox add-on for writers

If you use firefox browser, you can use this plugin to instantly count the number of words. It also give an extensive report with lots of information about the selected text:
https://addons.mozilla.org/en-US/firefox/addon/word-count-tool
If you are not using firefox or you want a reliable and fast solution, here is its web version:
http://wordcounttools.com

Mav Edit: While interesting, I don't know that there needs to be an entire thread on this since there really isn't any discussion to be had. It might be better suited for a mention in the social thread. I'm going to go ahead and lock this.