This widget is developed by moretechtips and is on google code.You can either download it from there and put in a direct way.
This is a jQuery widget for the brand new social network -Google Buzz- that you can embed anywhere to integrate your buzz stream into your page.
You need to add following before </head> section.
First one is a jquery library and the second one is google buzz widget script.
username:'Your googleprofile name'
Options and Modifications-
Your googleprofile name - Replace This with your own google profile name which is generally your gmail id.
n is the number of buzzes to read (maximum 100, default 10)
show_n is the maximum amount of buzz to display simultaneously (zero disables the transition effect and the default is 1)