BlockCypher Live

BlockCypher Live allows you to browse the Bitcoin main, testnet3, Dogecoin and Litecoin block chains. This explorer is also released as open source on Github

The service is supported by BlockCypher, the Block Chain Web Services company, which also provides a wide selection of web APIs to get addresses balance and transactions, get notifications and create regular and multisig transactions.

Source

http://bitcoin.it/

See Also on BitcoinWiki

• Blockchain Capital Fund
• XCrowd
• UIC franc
• VelocityCoin
• Luno (bitcoin company)