Minimalistic themes for Wordpress 2.0 (bis).
http://www.plaintxt.org/2006/06/13/the-best-minimalist-wordpress-themes/

eHub is a constantly updated resource of web applications, services or sites with a focus on next generation web (web 2.0), social software, blogging, Ajax, Ruby on Rails, location mapping, open source, folksonomy, design and digital media sharing.
http://www.emilychang.com/go/ehub/

Interactive (?!?) search platform for Switzerland. Looks like GoogleMap and just became official partner of Skype -> direct calls via Skype from the search results page.
http://www.local.ch

Every pixel in the illustration represents one person alive on Earth. The first one is you. The rest is everyone else.
http://www.royalsapien.com/pop1/

We are very small, and the universe is very big…
http://www.rense.com/general72/size.htm

Minimalistic themes for WordPress 2.0.
http://www.plaintxt.org/themes/

Well, Pasta recipes from De Cecco.

Animated GIFs of spinning wheels and others, to to indicate your site is doing something in the background.

http://www.napyfab.com/ajax-indicators/
http://mentalized.net/activity-indicators