Post a link to your novel info page on NaNoWriMo and your word count widget here. If you reach 50,000 words and are certified as a "winner" on the NaNoWriMo site, you'll get a badge here.
(Make sure to wait until Nov. 1 or so to do this. That's when widgets will reset if you participated last year.)
To do that, go to this page on the NaNo site. Copy the code under Participant Widget. (It looks like this: <img src="http://www.nanowrimo.org/widget/LiveParticipant/somenumber.png" />)
Post a comment here; click the HTML button; paste in the code.
If you want to add other Nano widgets as well, feel free!