A crypto-currency primer: Bitcoin vs Litecoin http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNH8Ar4XKBmqG-QF4N4PpRjig9FntQ&url=http://www.zdnet.com/a-crypto-currency-primer-bitcoin-vs-litecoin-7000024301/