FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts

Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!

Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.

Bowtie - Bowtie is a desktop accessory that allows you to see and control your music (iTunes, Spotify...

Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.

Owlead - Grow your Twitter with valuable followers, effortless