Configuring KDE4

Intro to KDE4 - http://www.kde.org/announcements/4.0/desktop.php

Social Desktop - http://www.kde.org/announcements/4.4/applications.php

Really liked this one - 
KDE 4 - http://genek.net/LinuxAdventures/installsetup/desktop1.html

Fine tuning the desktop behavior - http://everydaylht.com/howtos/eyecandy/kwin-changing-virtual-desktops/