By using the Location-API application you will be part of a world-wide crowd sourcing competition of wifis. The more wifi information you contribute with, the more free credits and higher ranking you will get. The application is suitable to have running in the background of your Android phone all the time. Install it, help to improve the coverage in your area and enjoy the free credits for location!
You can also easily send an email link share your location for 24 hours to family or friends.
And more for those of you who like mobile positioning like we do:
Location details: demos Combain-ed(!) positioning methods GPS, Cell ID, and Wifi. See the accuracy and performance of each method and view on a map etc.