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FirstCryptoBank is a very impressive exchange with some new and cutting edge features. It does much more than just trade coins with its many additional capabilities! You can trade, loan, deposit mine and much more so get signed up today.
BitCoinTalk is the most popular online forum for all types of cryptocurrency. Our community is very active there and it's a great resource to stay in touch with the people who are involved with ROI coin.
GitHub should always be your first go to resource when you need any type of support. You can submit issues there and interact with the dev team. You can also follow the active development of the ROI coin code.
The paper wallet is a useful tool that allows you to export and import coins and print them for safekeeping. Because ROI coin pays full POS and term deposits when your wallet is offline you can be very creative with this option.