I use Tumblr as my blogging platform.
It's a complete tech-weenie cop-out, but I tried it out for S&Gs a couple of years ago when I was feeling cheap. Every now and again I'm tempted to replace it with something more serious like Jekyll or Octopress or DocPad, but I have bigger fish to fry than what blogging platform I use.
That said, I don't edit in Tumblr. I do my work here, and what's unpublished in this repo is less-filtered, more-opinionated, and often utterly unresearched. Please have a grain or two of salt on hand if you choose to read further.
Regards,
Peter Burkholder 28 July 2014