I am the creator of Dmtri.com. It's a place where you can share thoughts anonymously whether you are signed up or not. Even when you sign up you have a choice to write anonymously to keep track of your writing.
Anonymity online is really important to me and I want to learn more about how to achieve that. As a rule of thumb, I use Tor when I browse. What other things can people do to hide their trace online?