The world is said to be a global village filled with people from different countries. People have friends from different part of the world and it becomes imperative to know where they are from for effective communication. You don't have to search for user info to know his/her location - just install Flags module to get flag icon next to user's name to know his/her location.
Badges plugin encourages members to perform various activity, frequently interact with each other and compete with friends in your social network. It is a simple and fun way to increase interaction and reward member activities. You can create different badges and define conditions to get them, for instance 30 blog posts to get Super Blogger badge and 10 music tracks for Music Lover badge. Badge can contain multiple conditions.