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...

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

foursquare

Photobucket offers image hosting, free photo sharing and video sharing. Upload your photos, host your videos, and share them with friends and family.

Prezi is the zooming presentation editor

Socialbakers - Online Facebook statistics portal

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

Offers bookmark synchronization, search enhancement and web discovery based on sites bookmarked by users.

Alexa provides information about websites including Top Sites, Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Information a...

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the worl...