Sonar

Sonar works in coordination with your Facebook, Twitter and Foursquare accounts. Once after surveying the accounts, Sonar determines your most appropriate connections and it will help you to learn more about the people in vicinity and assist you in activities including networking and online dating.

Path

Path is a smart online journal which helps you share life with your dear ones. You can post everything from your photos, the music you listen to, where you are, who you are with and when you wake and sleep. You can also post these path updates to social networks like Facebook, Twitter and Tumblr.