Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
CherryTree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.
GitJournal - Manage your Notes from any Git Repo.
Cryptee - Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos and all sorts of other files.
Quillnote - Take beautiful markdown notes and stay organized with task lists.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.