It's interesting to me that people who were just burned by Posterous would be OK with going to Tumblr. I like Tumblr a lot and have one myself, but it's still working out its monetization strategy: http://www.forbes.com/sites/jeffbercovici/2013/01/02/tumblr-... > Money isn’t that pressing an issue–yet. Karp says Tumblr has banked “most of” the $125 million it has raised. But Tumblr spent an estimated $25 million on i…
If you set up a tumblr with your own domain name, what's the problem?
I'm not on Posterous, but I am on Tumblr and I do worry the company won't always be around once the cash runs dry or they get acquihired.
I like the WordPress strategy of strong data portability features within a hosted environment and an open source, self-hosted option. This way even if WordPress.com (Automattic) gets acquired, WordPress.org will always be an option without having to get comfortable with an entirely new platform. Of coarse, if you're a developer you could always just use an open source static site generator like Jekyll or Middleman.