Learn more about Blockchain technology: http://ibm.biz/what-is-blockchain 
Check out this blog on the different types of Blockchain: http://ibm.biz/different-blockchain-types-blog
Learn about different Blockchain use cases: http://ibm.biz/blockchain-use-cases

Blockchain is a distributed and immutable ledger allowing you to track anything, including tangible or intangible goods. This enables users or organizations to digitally and securely record entries, that are in-turn endorsed and secured by a community of users.

Check out this lightboard video with Sai Vennam from IBM Cloud as he takes a deep dive into blockchain technology and covers everything from smart contracts to permissioned and permissionless blockchains

Get started for free on IBM Cloud: http://ibm.biz/blockchain-cloud-account-reg