I am tired of paying $4.95 a month to TypePad (a.k.a. SixApart). I have been a member since Nov 2006 which means I have paid them $79.20 over the last 16 months. Apparently, I have posted a whopping 47 times, so each post costs me a staggering $1.69. So I am packing my bags and moving to Tumblr. Tumblr is one of our portfolio companies, it is a beautiful and easy to use application, and frankly I like the concept of tumbling over blogging. It is also free! I have been keeping a shadow…