Distributed Ledger Technology

Ripple
10 things you need to know about Ripple
Ripple is the name for both a digital currency (XRP) and an open payment network within which that currency is transferred.
Ripple

OpenCoin
Google Ventures invests in Bitcoin competitor OpenCoin
Google Ventures and China-based IDG Capital Partners place a bet on OpenCoin, the company behind Bitcoin exchange Ripple.
OpenCoin