960 Robots is a theme created by Lullabot for its Drupal theming videos and DVDs. This theme, based on the 960 grid system, features two columns on the right side of the page, a two-column footer, calandar-page dates for posts, and real-name usernames in posts (requires profile field with the machine name "profile_real_name"). By jjef http://drupal.org/project/ninesixtyrobots

Great theme for a personal website of someone who likes the design of facebook.

http://drupal.org/project/fblike

Looks great for trendy websites

Great theme for technology related websites.

Great for a business or information portal.

Great for a personal blog/casual journal.

Great theme for a business that has recently launched.

 http://drupal.org/project/blix

Perfect for a personal blog or business website

http://demo.roopletheme.com/bealestreet/

 

Perfect for a personal site of a guitarist

With a few modifications, businesses as well as community groups can use the theme