webasyst  notes  comes with features for including attachments to your notes. You can sort the notes into specific folders and share the folders with your contacts. WebAsyst also has features to add files, photos, contacts, mail, projects, an issue tracker, pages, and a shopping cart.
luminotes ,a personal wiki notebook, as the site describes itself, is an easy to use wiki that lets you create notes. You can attach files to your wiki, and share them with your friends. Features such as automatic saving and revision tracking are very useful. Once you have completed your wiki, you can download it as well. This is not one of the conventional online notebooks but a key reason why you might want to use this is because of one feature that allows you to hyperlink one word or sentence in a notebook to another.
stik kit wants to be a smart application without being clever. What it does is pick up specific terms from your notes and arrange your notes as to-do lists, calendars, contacts (peeps), bookmarks and tags list. Now is that smart enough? You can also choose to share your Stikkit notes with your contacts and receive comments. For quick Web clippings, it provides a bookmarklet for Firefox and Safari, and a right click menu option for Internet Explorer users.