Skitch is a great tool that allows you to get your point across with fewer words using annotations, shapes and sketches on screen shots, photos or maps. This tool is powered by evernote which mean you can access your work on your computer, tablet or smart phone.
- Edit photos
- Label maps
- Mark up a website pages (screen shots)
- Sync and search across all your devices
- It's free
- You need an evernote account to sign up