HEATKEYS

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

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

AbeBooks is your source for Used, New, Rare and Out of print books. Find classic collectibles, rare signed editions, used textbooks, and inexpensive bestsellers from independent booksellers worldwide.

StumbleUpon is a discovery engine that finds the best of the web, recommended just for you.

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 friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

Google+ aims to make sharing on the web more like sharing in real life. Check out Circles, Messenger and Hangouts, just a few of the things we've been working on.

StatsCrop - a web service that lets you explore any website informations and its history, understand your competitor

Academia.edu helps academics follow the latest research.

Das Ziel von Google+ ist es, das Teilen im Web ganz ähnlich wie das Teilen im richtigen Leben zu gestalten. Probieren Sie Circles, Events, Hangouts und vieles mehr einfach mal aus.

An amateur guide to book shopping throughout Europe. Read about independent European bookstores selling books in English.