Opensource : Blockchain

Blockchain for distribute ledger : https://www.openchain.org/
Blockchain for big data : https://www.bigchaindb.com/
Blockchain shared ledger : http://www.multichain.com/
Keys to develop Blockchain : https://bravenewcoin.com/news/the-5-pillars-and-3-layers-to-enterprise-blockchain-solution-design/

https://medium.com/blockchain-blog/17-blockchain-platforms-a-brief-introduction-e07273185a0b