Steemit.com is a social platform that operates on the Steem blockchain.
I have seen so many people confused between Steem and Steemit (not hard to see why). People can't wait get paid some more steemit dollars and the price of steemit his really high today. SMH
Think of the Steem blockchain as a the foundation of a house. The foundation contains structural rebar and concrete. This is analogous to the code the blockchain is built on. The foundation is the most important aspect to the long-term structural health of the buildings.
Steemit is the living room and kitchen where family and friends spend most of their time with each other. When you're in the kitchen you can't see the foundation but it's what gives you your safe place to enjoy each others company.
Steemit (the kitchen) is built on Steem (foundation).
A final note:
Steem is a blueprint that many different builders can use to build different types of houses with different layouts, sizes, functions and many other features.
Steem is the foundation for many amazing skyscrapers to come!
Hang on and enjoy the ride! See you on the top floor!
Keep on Steemin!