Excellent GRC Go - Gridcoin Price Tracker - @nateonthenet
Gridcoin on CoinMarketCap
Gridcoin rewards users for doing scientific computations via BOINC. Volunteers have been doing these computations for years even before Gridcoin. I personally predict Gridcoin's price will explode in 2018 due to the large existing user base for BOINC, which has hardly even begun to be tapped.