As the Bitcoin fame & value is growing every day (1 bitcoin valued 1.122$!) more digital currencies appear on the market, most of them will probably not make it to the top, but there are certainly ones that are worth to be looked into.
Litecoin, a creation of former google employee – Charles Lee, serves as the alternative for Bitcoin, while the first can be used for heavy transactions, Litecoin might be used for the less expensive ones. The number of litecoins in existence will never exceed 84 mln (21 mln bitcoin). It provides faster transaction confirmations (2.5 minutes on average, which makes transactions four times faster) and uses a memory-hard, scrypt-based mining proof-of-work algorithm to target the regular computers and GPUs most people already have.
People around the world start to appreciate digital currency, which is the key to success, the more users, the more generated transactions and new places that accept the new currency. It is a promising money alternative for the one that is under government and banks control.