In my usage is Facebook for joining groups to get notified and also share some good projects as the same get some new projects to invest on. Next one is Discord there I get to know people who are admins , moderators who share any news about projects i have joined. Telegram is good method of online communication for fast messages between users it also helps me to daily know what is going on with money making projects. Gmail also,the most consistant source of knowing what is going on.