Better Notes - Simple notes app that ties notes together with #hashtags
Datahike - A durable datalog database adaptable for distribution.
Whimsical - The visual workspace for teams.
Datomic - The fully transactional, cloud-ready, distributed database
Great F*cking Startup Advice - Strongly worded suggestions for startup founders
MarkLogic Server - MarkLogic Server is a multi-model database that has both NoSQL and trusted enterprise data management capabilities.