This website functions the same as reddit, you can make your own communities and you can also post in other communities. Theres two different tpyes of communities, one is local (any communities that have been made on this website from useres who signed up here) and non local, which are communities from other instances (servers). You can interact with those communities too, but they have to be federated. To federate a community you copy their name (not displayname) and put it into the search bar on the tab of communities - dont forget to make sure that youre on the all tab. Once you did that the community is federated which means everyone can participate in it. A way to find new servers with new communities on it is to go to the bottom of this page and click on “instances” which will list some instances that federate with us. You can explore them and find new communities that way. This is all optional though!

I do highly encourage you to make your own community here and make some posts to make this lively.