HEATKEYS

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

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

foursquare

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

Don

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the world, securely and privately show content to your friends and family, or blog the photos and videos you...

The world?s largest online music catalogue, powered by your scrobbles. Internet radio, videos, photos, stats, charts, biographies and concerts.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Estimate the distance to and distance from any two locations in the world - Distance map

Find latitude and longitude of any known location by clicking it on a map or entering zip codes or addresses. Batch geocode a list of locations. Convert decimal degrees to degrees minutes seconds and vice versa.

WhatWasThere ties historical photos to Google Maps, allowing you to tour familiar streets to see how they appeared in the past.