Etherium Alliance Open Source Block Chain Alliance (opens the source in a new tab)
Good 'splainer. Despite recent heists, Etherium gains in importance
blockchain
IBM Builds Blockchain Tool for London Stock Exchange (opens the source in a new tab)
It's not there yet, but blockchain tools are only going to get bigger
TechRepublic's Blockchain Guide (opens the source in a new tab)
This covers all the basics, good way to get up to speed re: blockchain