earthalbum.com
a google maps + flickr mashup that allows you to explore the world
glotter.com
Create and share custom world maps. View KML in Google Maps/Earth. Add Street View imagery, YouTube videos or Flickr/Picasa slideshows to your map.
mygeoposition.com
Geocode your own geoposition, create free geotags, geo-metatags and kml files for your website or weblog. Includes reverse lookup: Enter a geocoded website, we will display it's position on a map!