There are lots of great tools out there. Far too many to try. Here are the ones that I’ve tried, and found worth recommending. Mostly they’re OS X Developer Things Quiver is a “Programmer’s Notebook”. I’ve recently switched to it from CodeBox which seems to have been abandoned by its developer. I’ve got some minor quibbles with Quiver, but overall it’s pretty nice and I’ll be bringing all my code snippets and reference material over to it.
[Some perspective] [What’s good] [What could be better] [Bugs] [Would I recommend it?] Some perspective I purchased Byword because I think Markdown is a spectacular way to write and was looking for an app that would allow me to create new documents, easily preview them and grab either the formatted preview text or the generated HTML. Until now, I’d been using Marked for previews while I typed in Vim.