HEATKEYS

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 ...

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

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

foursquare

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

Foodspotting is a visual guide to good food and where to find it. It

Eater San Diego : The San Diego Restaurant, Bar, and Nightlife Blog

Geocaching is a treasure hunting game where you use a GPS to hide and seek containers with other participants in the activity. Geocaching.com is the listing service for geocaches around the world.

Beer community dedicated to supporting and promoting beer through education and appreciation. Learn more about craft beer, find a brewpub, brewery, bar, festival, become a beer geek and respect beer.

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

Honest hotel reviews, millions of travel buddies, and thousands of travel blogs to help plan your next trip. Share travel tips, find a travel buddy, or blog about your travel experiences, all for free.