Comment by darekkay

There's also Irys (from Alan Schaller). It's more open than Glass, as it's a freemium model, but it's also more closed at the same time, as it doesn't offer a web-based version. It's probably even more photographer-oriented than Glass. For something truly open, there's Pixelfed. All those platforms have their pros and cons, especially regarding the audience. Personally, I publish all my photos on my own website and syndicate them to (in order of preference): Glass, Pixelfed, Instagram, Irys.