If you've got plenty to remember, online notebooks help keep it all at your fingertips.
Rather than jotting things down on scraps of paper, online notebooks let you type in quick notes or upload items such as photos and audio recordings. They're stored and catalogued, so you can quickly search through them when you need to recall that important piece of information. Google abandoned its Google Notebook last year, leaving Evernote as the heavy-hitter of online notebooks, but the search giant is back again with Google Keep.
Google Keep is part of the Google Drive suite of online services, but at this stage Keep is only accessible via a desktop browser or Android smartphone. There's also a Chrome app that lets you use Keep in offline mode. Meanwhile, Evernote supports desktop browsers and standalone applications as well as Apple iOS, Blackberry, Windows Phone and Windows 8. The Evernote Web Clipper browser plugin makes it easy to save pages or sections of text straight to Evernote.