I registered on the day you launched the server page @ PMC. Haven't seen much additional info since and I cannot join the whitelisted server nor find an invite to your Discord.
What's the plan?
I've gone ahead and made you an invite to the server, however, if you find yourself in need of another you can join simply by using the Discord widget found on the website. We are still very much in development at the moment. The best way to remain updated would be to keep an eye on the website and watch for Discord pings.
Thanks for your concern.