Posterous was genuis: Blog posts over emails. Its primary competition, tumblr, grew big with super easy sharing mechanics. Notion.so now with its Swiss army knife of products, esp with wiki-like semantics, has taken off as not only an Evernote alternative but for documentation, as well. And there's of course, Netlify that turns GitHub repos to websites; plus tilda.cc and the like are growing, too. This area (low-code websites) is ripe with budding upstarts.
I personally use https://1mb.site for simple pages, but it still isn't easy to use.