MarkupNotes - Create your own database, like those that you saw on the Internet. It's not just a notebook, or a collection of data, and a personal library. You can freely fill it out, create articles, and even links to your other pages has never been so easy and comfortable to store all your recordings. You can use for study, and to create a course on a particular subject, divided into paragraphs, or themes. Very useful and handy thing, and most importantly simple and straightforward.