NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.
ReCsvEditor - Csv / Tsv / Delimited file editor. Supports for very large Files.
TakeNote - A web-based note-taking app with GitHub sync and Markdown support.
AZZ Cardfile - AZZ Cardfile is simple to use software that helps manage and organize any kind of records. It can serve as Rolodex, PIM, contact manager, address book, small database.
JustNotepad.com - A free online notepad allows you to create any text or notes in your web browser.
AtoZ Notebook - AtoZ Notebook is a simple, password protected Data Manager.