Another website that should be up for consideration is
Webtoons. Free official English translations (e.g.
Tower of God), no expired/locked content past certain chapters, and extremely minimal and unobtrusive ads. Their main revenue is through allowing people to buy chapters "in advance" by three weeks, but only for certain series; it's definitely not the most evil way to gain money. Has lots of content (and an unfortunate follow/subscribe system) that would benefit from alerts via MD.