Twitter is without a doubt the best way to share and discover what is happening right now.

YouTube is a place to discover, watch, upload and share videos.

San Francisco - User Reviews and Recommendations of Top Restaurants, Shopping, Nightlife, Entertainment, Services and More at Yelp

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...

foursquare

TripAdvisor - Unbiased hotel reviews, photos and travel advice for hotels and vacations - Compare prices with just one click.

Plan a trip, book cheap airfares, purchase airline tickets, make hotel reservations, and find vacation packages, car rental & cruise deals at the ...

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...

Plan bicycle rides, bike routes and analyze performance data using google maps. See elevation profiles while you map then share with your friends. U...