Blockchain Technology

Feathercoin
Feathercoin secures its block chain with advanced checkpointing
Feathercoin has announced advanced checkpointing in its block chain to protect against 51% attacks.
Feathercoin

mastercoin
MasterCoin to create new altcoins in Bitcoin's block chain
The Mastercoin protocol layer gains community support to create a new generation of altcurrencies on the Bitcoin block chain.
mastercoin