Staking Calc - Staking Reward Calculator
Parameters - Network parameters
Mempool - Historical data on full node mempool size.
Propagation - Comparisons of block and vote propagation times on the network.
Nodes - Historical data about detected full nodes.
Proposals - Governance Proposals
Exchanges - Historical exchange rate information
Community - Historical data points for twitter, reddit, github, etc
PoW - Proof of Work mining pool data
VSP - Voting Service Provider data