If you're really into social media - I mean head over heals devoted in love with social media - check out Nimble. 
TAKEN FROM THE NIMBLE WEBSITE:  http://www.nimble.com/ 
Some reasons to choose Nimble

Your Networks, All In One Place
Unify all your contacts, calendars, conversations from Twitter, Facebook, LinkedIn, and Google. Monitor the most popular social networks from one screen, engage prospects, and build deeper relationships. see more

More Revenue in Less Time
Nimble’s sales automation tools will enable your company to accurately track all business opportunities so you can close more deals in less time. see more

Smart and Magical
Stay more connected than ever to your contacts with notifications on job changes, birthdays, comments, likes, invites and more. see more

Nimble Integrations
Nimble now integrates with 3rd party applications to create a true closed loop marketing system for your social business. see more