This post features the 350 best free Tumblr themes to make your Tumblog look more beautiful. I collected these themes exclusively for the readers of our magazine. These themes contains different kind of designs for different kind of tumblr blogs. Tumblr is a great micro blogging website that allows users to share quotes, pictures, audio and videos with their fans and friends. Within very short period of time Tumblr becomes really popular. David Karp founded Tumblr in 2007 with MarcoArment as lead developer. 75,000 existing bloggers soon switched to the platform, and since that time, the service has garnered more than 3 million users. In 2009, Tumblr acquired the Tumblr iPhone app, initially known as Tumblerette, that was created by Jeff Rock and Garrett Ross. Each one of us love our Tumblog and wants to make it look different from other tumblogs. But not everyone can purchase the premium Tumblr themes. This is the reason I compiled this great list of free Tumblr Themes for our blog readers.