Started out with the GTTC*, made some lasting friendships, and OOBness. Honestly any gymnerd site I could find. It was all undiscovered territory. I remember one with mock competitions where I won a leotard design contest.
Then GGMB, but only briefly. Man that place was AWFUL.
Wondered around sad for a while then found wwgym.
*Pretty sure my local post office thought I had a porn business going.