This is my preferred note-taking and storing application now. The previous descriptions are well done, so I don't need to repeat them here. But the point of simplicity cannot be made often enough. SB allows you enough "complexity" where needed (RTF for the notes, keywords), but stays simple enough compared to such applications as NoteTaker or NoteBook and does not force you to follow a certain structure (as the date-centered focus in Journler for example). A crucial point for me is the openness of the system. You can get all of the information out in various formats (either individually, or grouped after you have tied together some information), you can intuitively and intelligently browse through your own thoughts in a manner you never envisioned before (which is the whole point of using tools like that), you can search for your notes though a simple Spotlight search, you can search your data on your computer based on your notes (again through Spotlight) - this tight integration with core Apple technologies makes this a 5-star app for me. I have tried them all and for me as an academic, with ideas and notes being my core asset, this is the one that allows me to make the most use of my own knowledge. Oh, and it's free and takes up so little space (on your hardrive and RAM) that it can (and should!) run all day on your Mac. Give it a try. Read through the sales pitch. You will love it if you want a simple approach that yields very powerful results.