https://discordapp.com/ - Is where you download the app/access it via browser.
https://discord.gg/ZGAz4YJ - is the link used to join the Discord server.
Discord is an excellent community & chat program. You can use it on your phone, on your browser, and on your PC. The forums & gameranger are okay, but using Discord makes getting games & accessing members of the community much faster & easier. It has text chat as well as voice chat, much like TeamSpeak & Mumble, and servers are free. It's a great and takes up little space, so I decided to make a Discord for everyone who plays TA:K.
Use the second link to join the Discord server. Either copy & paste it into your browser url bar, or if you are using the application, press the large + sign you see (found on the left side bar) and copy and paste the url into the JOIN SERVER box. Voila. You're in! Hope to see everyone there!