IOTA looks to be the next generation blockchain, using a new architecture called a DAG (Directed Acyclic Graph) that lends itself towards being suitable for Internet of Things applications such as data transfer and maching-to-machine micro-payments.
IOTA aims to solve three problems with the current cryptocurrency ecosystem, transaction fees, scalibility, and offline transactions. Blog post covering this here: https://medium.com/@cryptojudgement/iota-promise-of-a-bright-crypto-future-6b7517349e32
Project Home Page: https://iota.org/
Project White Paper: https://iota.org/IOTA_Whitepaper.pdf
In The News
Sept 7, 2017: Cryptographic Vulnerabilities in IOTA