Smaller Google Earth KML downloads for individual countries, counties/regions and site types are now available from The Megalithic Portal
www.megalithic.co.uk .
The downloads can be found on our "Browse by Country/Type" page
http://www.megalithic.co.uk/topics.php?countries=1&kmldown=1Then click on the [KML] links to download your selections of data by individual country, county/region or site types.
The downloads are now compartmentalised into folders to allow some data to be turned off. This cures the problem of too many visible points overloading things.
You can also still get a full dump of all the Portal data as a compressed KMZ file here:
http://www.megalithic.org.uk/megp/megalithic_earth.kmz (1.8MB download)
You will need to download, install and run the Google Earth application first. You will need version 4, it will not work with Google Earth version 3.