DataTip - The fastest way to store & access your critical datapoints.
Dataset Search - Making it easier to discover datasets. Made by Google.
HeyForm - Paperless data collection with better data insights
Kaggle Datasets - Share, collaborate on, and analyze open data
Immutable.js - Immutable persistent data collections for Javascript which increase efficiency and simplicity. - immutable-js/immutable-js
Tunzal - Tunneling solution to expose local endpoint at minimum cost.