http://performancing.com/blogging-tools/48-unique-ways-use-wordpress
http://blogs.zdnet.com/BTL/?p=7366
http://www.newmediamaze.com/index.php/2006/07/21/new-media-maze-launches-arena-magazines-blog/ — Reason why Arean Magazine Blog is using WordPress
http://www.arenamagazine.co.uk/
http://publisherblog.automattic.com/ —- the official site of wordpress company
http://rubiqube.com/35-professional-looking-corporate-websites/ —very nice
