If you don't already have a Foursquare account, you can quickly log in with your Facebook account. As of yet, there's no option to use your Google credentials.
Beef up your profile
Your profile page keeps track of all your activity on the network, including tips you've given, photos you've uploaded, and badges you've earned.
On Foursquare, you can create your own lists of locations or save the lists of others.
The home screen gives you popular spots nearby, recent activity, and a nifty floating button to quickly check in to a location.
Search and browse
With the search bar up top, it's easy to search for a location or browse through categorized lists of locations nearby.
On a business' page, you can find photos, address, hours, and other vital info. In some cases, you can even browse a restaurant's menu.