oorja - Your Dedicated Meeting Spaces Online — no installations
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
DejaOffice - Super-charged calendar, contacts, tasks and notes apps for Android, iPhone and iPad.
Simplenote - The simplest way to keep notes. Light, clean, and free. Simplenote is now available for iOS, Android, Mac, and the web.
Stash - Free Sketch resources, redefined.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.