800 5th Avenue
The Bittrex exchange is easy to use with its simple graphical user interface, ION is paired there with BTC.
ionomy has a very active publicly accessible GitHub* where details about the ION cryptocurrency can be sought, there are also various wallet downloads for the different operating systems and a wiki with well written guides and articles on building the daemons and QT wallets for Staking and Masternode operations.
*GitHub Inc. is a web-based hosting service for version control using Git.
Should you need it and have some technical queries, you can email ionomy support on the email address listed.
If you are a developer, you can take part in improving and creating new featured in the ION code.
stke.io is a Masternode hosting website, but they not only facilitate entire Masternode hosting but also you can take part in Masternode shares, or part thereof, so if you have 1 – 19,999 ION, you can take part and receive relative payouts for the shares too!
This site comes highly recommended, and is a great way to get into $ION Masternodes!
You can also take part in BSD and CRW Masternodes hosted on the site.