Scribbish is a theme by Jeffrey Allan Hardey available for Typo, Mephisto and Wordpress. Now, thanks to me, it's also available for Drupal.

Its layout standardizes on a simple xhtml structure, blog entries are formatted using the hAtom microformat specification, and styles are separated into individual files which are included in the correct order, making it easier to control the cascade and to figure out ‘what-goes-where’.

Features:

• uses the hAtom microformat specification
• minimalist style
• easy to modify!

It's available here: http://drupal.org/project/scribbish.