After the demise of Posterous and some frustration with Tumblr, I have decided to use static site generator Nikola to start over. Maybe some of the old posts will return, but I don't intend on bringing everything back.
Why a static site generator? When Posterous called it quits, I had a lot of trouble extracting my content form their servers. When I was looking for Tumblr alternatives, the same problems appeared. With a static site generator, I have all the sources in a single repository, and I have full control over every character, picture, post, tag and category.
Why Nikola? Because I like Python and it looked like the most up to date generator out there. I also liked Pelican.