Google Maps

1. Advantages

1.1. accessible

1.2. high accuracy

1.3. easy to use

1.4. convenient

2. Applications

2.1. GPS

2.2. OpenRice

2.3. Facebook

2.4. MyObservatory (我的天文台)

2.5. Taxi-App HK / HKTaxi

3. Controversies

3.1. copyright

3.2. not 100% accurate

3.3. privacy

4. Technology

4.1. location-based

4.2. GPS

5. How Google Map affect people's life?

6. Function

6.1. route planner

6.2. create own map by adding notes, photos or videos

6.3. find location

6.4. navigation

6.5. street view