SHA-256 is a member of the SHA-2 cryptographic hash functions designed by the NSA. SHA stands for Secure Hash Algorithm. 

SHA-256 Mining

Zetacoin Mining
Peercoin Mining
Unbreakablecoin Mining
Zetacoin is a digital cryptocurrency that uses the SHA-256 algortithim for proof of work.
Peercoin is a digital cryptocurrency that uses the SHA-256 algortithim for proof of work.
Unbreakable coin is a digital cryptocurrency that uses the SHA-256 algortithim for proof of work.
Namecoin Mining
Emark Mining
Namecoin is a digital cryptocurrency that uses the SHA-256 algortithim for proof of work.
Emark is a digital cryptocurrency that uses the SHA-256 algortithim for proof of work.
Bitcoin is a digital cryptocurrency that uses the SHA-256 algortithim for proof of work.