Question2Answer - A Q&A site helps an online community to share knowledge.
Coin Demo - Visual demonstration of how bitcoin transactions work
Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
BlockchainI.CO - Research, ratings and analysis on upcoming ICO’s
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Blockchain Startups Map - Map & searchable database of 430 companies in 64 categories.