aacf4497__Blogger__Tumblr_and_Posterous__0
[Blogger.com] Layout Designer and Full HTML Editor [Wordpress.com] You need to pay in order to do CSS changes or change fonts. [Cost: $30/year] [Tumblr] Full HTML Editor. [Posterous] Full HTML Editor and support for TypeKit Fonts. [0] 
Theme Editing
Choosing a Free Blog Host - Comparing WordPress.com, Blogger, Tumblr and Posterous
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