I have a small obsession with tinkering with and figuring out the best use of Google Analytics User Defined Variable; good link from the always good kissmetrics:

kissmetrics:

Google Analytics User Defined Variables (__udv) Revisited http://klck.me/2e #ga #wa

I’ll post later about some things I’ve thought of or tried (registration dates, gender of user, etc.), but in the meantime… do you have any interesting uses of GA UDV?