Your People hub is a great place to keep tabs on all of your
contacts, no matter whether they come from a SIM card, email address
book or social networking sites Facebook, Twitter and LinkedIn. However,
they can get out of control. Freshen up by filtering your contacts. Go
into your People hub and click the menu button. Then tap Settings >
Filter my contact list. Within this option is the ability to select the
accounts that you want to display contacts from. Go on, a bit of life
laundry never hurt anyone.