What really makes Tumblr -- and Posterous for that matter -- stand apart from the pack is that these platforms are extremely easy to use. Posting an image, a quote, a link or a video is very simple, and the reblog feature is a great way to share cool things your friends post.
While Tumblr isn't quite as advanced as hosted content management systems like WordPress or Drupal, new features have recently hit the service, including Pages and reader-submitted Q&A and contributions.
Tumblr has also ramped up its theme customization options, adding new features to its theme documentation and even offering its own marketplace for premium Tumblr themes.
Over the past few months, Tumblr theming has really been taken up a notch; you might be amazed at some of the designs you can install on your own Tumblr blog.
Check out this slideshow for ten of our favorite new Tumblr themes, and please share your own favorites in the comments!
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