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

CrunchBase is the free database of technology companies, people, and investors that anyone can edit.

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...

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

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...

ProgrammableWeb.com keeps you up to date with web mashups and APIs: what

Talking Travel Tech - Tnooz brings news, analysis and commentary on technology, marketing, social media and distribution to the global travel, tourism...

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

foursquare

Logopedia is a collaborative database for logos and corporate branding. Includes the history of successful company logos, popular branding and more.

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&#39...