what exchanges currently support these updated coins?
We are in the middle of a switch from trading classic coins to trading research coins.
Exchanges still trade Gridcoin-classic as GRC. For the time being you can engage in trading research (via escrow) as mentioned below:
Ok, couple of users asked me about trading sheet, which we used at the begining, so i reopened it. Now we can try to trade PoR GRC.
Here is topic. Here is the sheet.