THE LIST: (note: currently mostly unfilled)
Mining pools: (first guess from the ones not-mentioned on Bitcoin Classic site)
- F2Pool - ???
- BTCC - ???
- Slush - ???
- Kano - ???
- Bitclub - ???
- Ghash.IO - ???
- Eligius - ? - (Possibly, as Luke-jr supports Core?), probably due to this.
- BitFury - ?? - mentioned on BitcoinClassic as suporter, but this indicates more balanced view.
- P2P mining - ???
Online wallets:
SPV wallets:
- Mycelium - ???
- Multibit - ???
- Electrum - ???
- Armory - not a SPV wallet, probably depending on "Core"/"Classic" implementation
breadwallet- , mentioned on Classic- Greenaddres
Other:
- Trezor - ???
- Ledger - ???
- Keepkey - ???
Exchanges:
- BTC-e - ???
- localbitcoins - individual, obviously. Depends on the participants.
- MPEx - Mircea Popescu expresed some very strong views in this case. (Repeatedly, consistently and coherently). (1, 2, 3)
Merchants:
- Robocoin - ???, possibly ceasing operations 1, behavior of their ATM machines will depend on operator?
Payment processors: