1) Yelp Yelp for Android determines your current location and then lets you search for nearby businesses, read reviews and so on. It also lets users filter by "Price," "Open Now," "Special Offers" and "Hot on Yelp." Free.
2) Google Goggles Google Goggles is a visual search app. Take a picture of the object, landmark, logo, etc. you want information about and Google Goggles will return relevant search results. It will even provide information about businesses by displaying their names directly in the camera preview.
3) Google Places Directory Take the mystery out of finding nearby places with Google Places Directory. Places Directory allows you to browse nearby places in categories like restaurants, movie theaters, hotels and banks. It also gives you distance and directions along with ratings and photos.
4) Phonebook Looking for an alternative to manage your contacts? Phonebook displays your contacts with contextual information like missed calls, unread text messages and even birthdays.
5) Yellowbook.com Mobile Search Need to find a phone number or business address? This app puts the phone book at your fingertips and includes voice recognition.
6) FactBook Stay on top of information on every country in the world with FactBook. This app draws from the CIA World Fact Book and United Nations data to provide information on every country's geography, population, government, transportation and military. Free.
7) WeatherBug Mobile WeatherBug provides live, local, location-based weather information from its network of weather stations. It offers alerts, radar, satellite maps and videos. Free.
8) The Weather Channel Keep up with everything you need to know about the weather with this app. It features hourly, 36-hour and 10-day forecasts and live video from the TV channel.
9) GPS Status & Toolbox Looking for more information from your GPS? This app displays your GPS and sensor data and provides the position and signal strength of satellites, accuracy, speed, acceleration and bearing. The app's tools include a compass with both magnetic and true north and a leveling tool.
10) aCar This app allows you to track the maintenance, fuel mileage and expenses of your vehicles. It provides notifications when it's time to change the engine oil, air filter, oil filter, etc.
11) Mileage Ledger This app makes it easier than ever to track your mileage for business reporting. It uses GPS to automatically track and log your mileage. You can then e-mail your report directly from the app. Paid: $8.95 annually.
12) Gasbuddy Find Cheap Gas This app provides comprehensive, real-time gas prices in your area (US and Canada) with maps. Users who pitch in by reporting gas prices in their area can win free gas.
13) US Traffic US Traffic provides traffic reports about your neighborhood and works anywhere in the US. It supplies detailed traffic incident information.
14) Trip Journal Document your travel experiences with this app. It automatically tracks your itinerary in real time, keeping stats on distance, time and geography traveled. It integrates with Google Earth and allows friends and family to keep tabs on your journey. Paid: $1.99
15) TripIt Keep all your travel information organized and at your fingertips with this app. TripIt stores all your travel information and can generate itineraries for you. Free.
16) Cab4me Find or call a cab quickly, even if you're not in Manhattan. This app keeps a database of local taxi companies and taxi stands and helps you place a call to a car service when you need one.