50 Things to do with Google Maps

1. Measure your run route or commute
2. Check the time in a world location
3. Look up a US zip code
4. Measure Area
5. Make your own Google Map out of any map
6. Map your photos
7. Check what's on the other side of the world
8. Find a person in the US
9. Check the weather anywhere
10. Find the nearest Starbucks
11. Discover an eBay real estate deal
12. Find airport parking in the US.. or the UK
13. Create a running route
14. Watch a travel video
15. Find Fast Food in the US
16. Buy beer in Ontario
17. Check the news for your zip code
18. Avoid disease outbreak
19. Beat traffic
20. Make your own Google Maps mashup
21. Avoid red light cameras
22. Find cheap gas
23. Check sunrise or sunset times
24. Convert currency
25. Find a place to live in the US
26. Find out where the daylight is right now
27. Find a ski resort anywhere in the world
28. Track a flight on Google Maps
29. Calculate the distance between two world airports
30. Find the elevation/height above sea level
31. Map the 7 Wonders of the World
32. Find a golf course anywhere in the world
33. Click anywhere and get travel info
34. Simulate a flood to show damage effects
35. Fly a plane
36. Search Google Maps in full screen
37. Find a world webcam
38. Find a US or Canadian Library
39. Find a world port
40. Map the fish in your tank
41. Find high risk areas for modern marine pirates
42. Find a world dive site
43. Map Wikipedia articles to their location
44. See where UFOs have been sighted
45. Pray in the direction of Mecca
46. Search eBay items by US zip code
47. Map flight turbulence and pollution
48. Plan a London tube journey
49. Calculate cab fare in New York City
50. Map where movies were filmed in the US and Canada

Source: Google Maps Mania: 25 Things to do with Google Maps mashups