PubCon 2012 slides: disavow links tool

In the Matt Cutts' blog we can see this post about slides when he spoke at PubCon 2012 in October 2012 in Las Vegas:
http://www.mattcutts.com/blog/pubcon-2012-slides/

You may have heard of my 30 day challenges, where I try something new for 30 days. Those challenges are great to try out a new habit and see how you like it.