Slightly off-topic, but whatever.
This is a fascinating site with tons of info and screenshots detailing the development process of Starcraft. It’s pretty cool to see how the game comes together in the various different versions. I had no idea that it was originally created with the Warcraft 2 graphics engine.
Did you know that the Zerg were originally known as the Nightmarish Invaders? Yeesh! Some other interesting stuff: Valkyries were originally going to be in the original game, but were pushed to the expansion. Drones and SCVs could fly. Firebats could start forest fires. Each Zerg building had its own set of larvae.