I faced the same question a few days ago. I went for Tumblr in the end, mostly because of the polished feel both of the website and of individual Tumblr blogs,

I faced the same question a few days ago. I went for Tumblr in the end, mostly because of the polished feel both of the website and of individual Tumblr blogs, the low barrier to entry, and theme customisability. I've quite liked how little I've had to change to get a basic blog working how I want it (decent look and feel, Twitter feed integrated, etc). Only nasty surprise since has been that the Tumblr founders "don't believe in comments", so there's no built-in commenting support (instead of commenting, you're supposed to sign up for your own Tumblr account and use their "reblog" feature, which isn't a decision I want to force on any readers I may attract). They do have some integration with Disqus, which I was sort of planning to use anyway, although apparently this doesn't work so well in themes other than the default "Redux". I have had a couple of problems with comments not showing up, but I think it's probably a problem with Disqus rather than with Tumblr. I found a couple of Mashable articles comparing Posterous and Tumblr: http://mashable.com/2009/06/29/posterous-vs-tumblr/ http://mashable.com/2009/06/29/posterous-vs-tumblr/ http://mashable.com/2009/09/28/tumblr-vs-posterous/ http://mashable.com/2009/09/28/tumblr-vs-posterous/