CryptoBridge is a decentralized cryptocurrncy exchange. It it one of many cryptocurrency exchangs where one can buy and sell smartcash https://smartcash.cc/ and other cryptocurrncies.
Recently CryptoBridge has announced that smartcash https://smartcash.cc/ would be a featured currency at the exchange.
So when you visit CryptoBridge you would find smartcash https://smartcash.cc/ having its own tab on the exchange.