[Added June 29]
To be announced:
https://www.reddit.com/r/BitcoinGoldHQ/comments/8u9ort/wallet_mobi_wallet_is_preparing_for_the_hard_fork/

https://www.reddit.com/r/BitcoinGoldHQ/comments/8uuwu9/exchange_bitmarket_confirms_they_are_ready_for/
https://www.reddit.com/r/BitcoinGoldHQ/comments/8uuwkb/exchange_changelly_confirms_they_are_ready_for/
https://www.reddit.com/r/BitcoinGoldHQ/comments/8uuw96/exchange_tradesatoshi_comfirms_preparing_for_the/
https://www.reddit.com/r/BitcoinGoldHQ/comments/8uumch/pool_jules_confirms_coinblockers_is_ready_for_the/
https://www.reddit.com/r/BitcoinGoldHQ/comments/8uulwg/wallet_guarda_wallet_confirms_they_will_be_ready/


Fork update 3: https://twitter.com/bitcoingold/status/1012662105160470528

Forum progress report: https://forum.bitcoingold.org/t/hardfork-network-upgrade-progress/1703/