But it's different from Blank Slate in that it doesn't allow for saving quickly (I make a PDF or take a screen shot if I need what I write for later referencing).
looks like Blank Slate can also do that (notes start as private but you can "publish" them, giving you a public URL). Other cool things about this one are that it is open source (https://github.com/tomasienrbc/notes) and that there are extensions, for instance to turn your note into a Google Doc. It also works with markdown so you can make bulleted lists and such.
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But it's different from Blank Slate in that it doesn't allow for saving quickly (I make a PDF or take a screen shot if I need what I write for later referencing).