Here is a guide that shows you how to upgrade Gwibber from version 3.0.0.1 to version 3.1.0 using the gwibber daily ppa.
To upgrade Gwibber open a terminal window (press Alt+F2 and type: gnome-terminal) and copy+paste the following lines:
sudo add-apt-repository ppa:gwibber-daily/ppa
sudo apt-get update
sudo apt-get upgrade
To start Gwibber press Alt+F2 and type: gwibber
Gwibber is an open source microblogging client for Linux. It brings the most popular social networking web services to your desktop and gives you the ability to control how you communicate.
Gwibber Homepage