Are you looking for design inspiration for your blog.In this blog post on Vandelay Design,they have compiled a list of 10 sites(mostly showcases),where you can look for design inspirations.

Check the article  here http://vandelaydesign.com/blog/wordpress/design-inspiration/

btw,smashing magazine is my favorite place for designing related resources.Check them here http://www.smashingmagazine.com/

Dougal does his best at providing an insight about thinking and using the permalinks structure in wordpress efficiently and intelligently.

Check his post here.

http://dougal.gunters.org/blog/2009/02/04/efficient-wordpress-permalinks

The article by John Sextonn GoMediaZine shows you ,how can you add a stunning featured content slider to your wordpress site/blog.

Check his excellent tutorial here.

http://www.gomediazine.com/tutorials/design-elegant-featured-content-slider-wordpress/