A good first start is to own/control a domain (such as whatever.com) and use a web hosting provider that supports its clients. I strongly encourage people to us

A good first start is to own/control a domain (such as whatever.com) and use a web hosting provider that supports its clients. I strongly encourage people to use Nearly Free Speech. They've been great to me over the last 15 years or so. Beyond that, I think originating your content on your property is key. If someone repeats it on a social network, that's fine. Just don't create it there.