There is a small but still active Discord community for the game.
The official and most active server can be joined here: http://discord.gg/rjYXwBC
I have also been working on a website which I hope will eventually serve as a complete preservation and curation project for Eden World Builder. We have archived all of the worlds featured through the game's history, as well as a bunch of 'hidden gems' I've found either by searching random terms or by periodically checking the 'recent worlds' list. There is a search function, and many of the worlds have tags added to them.
You can access this website here: https://hagg3.github.io/edenarchive/