I reblogged this tutorial from this site :
Everpad is an unofficial Evernote client for Linux, it syncs your Linux machine much the way the native Evernote programs do with Windows and Mac.
Everpad is well integrated with Ubuntu Unity Desktop, it supports indicator applet and unity lens. It also works great with other DE, include Xfce and Gnome.
Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run command below to add the PPA:
sudo add-apt-repository ppa:nvbn-rm/ppa
Then update and install this app:
sudo apt-get update; sudo apt-get install everpad
Once installed, open Everpad from Unity Dash.