Google Earth overlays
- Flickr
- An extensive collection of shared photos from around the world
KML feed 2.0 via kmlphotos.metaltoad.com
- Panoramio
- An extensive collection of shared photos from around the world (included in standard GE Geographic Web layers)
KML feed via panoramio.com
- Wikipedia
- Wikipedia links (included in standard GE Geographic Web layers)
KML feed via tools.wikimedia.de
- Wikimapia
- WikiMapia is an online map resource that combines Google Maps with a Wiki system, allowing users to add information (in the form of a note) to any location on the globe.
KML feed via wikimapia.org
- Placeopedia
- Collection of Wikipedia articles with their places
KML feed via placeopedia.com
- Geonames
- Placemarks and objects
KML feed via geonames.org
- GoogleGlobe
- Placemarks and objects; GoogleGlobe Assistant
KML feed via googleglobe.com
- EPA AIRNow
- Real-time air quality
KML feed via epa.gov
- Blogs
- Applications
- Tips and howtos