Use these check in apps to find your friends and get great deals.
Foursquare — Best City Guide
Check in to your favourite stores, restaurants, events and more–get mayorships and discounts, as well as tips & reviews from other patrons who have been there before.
Much like Foursquare, check into local businesses and locations.
Facebook now has location-based check ins in its app, called “places.”
tvtag – formerly GetGlue
You don’t have to just check in to a location — use the social entertainment site to check into your favourite shows, movies and more. Find out what your friends are enjoying, and share your favs.