Well, since i was a late comer to the Internet (2010,) my first account that i still use is Techspot itself. I registered Techspot under my Yahoo address, but since i don't use it anymore that doesn't count (Gmail all the way for me now)
I am currently registered at 35 websites that require a password; I only visit 8 on a regular basis though.
But yeah, Techspot was the first!