Make Charts on Google Earth with GE2KAP
Paul Higgins and his trusty sidekick Whitey authored the program GE2KAP. This free software allows you to make charts with Google Earth overlays. The result is an amazing combination of photo-real land detail and waterways that are navigation charts.
GE2KAP is not an OpenCPN plugin. This is a stand alone program that allows you to create unique charts that can be used with OpenCPN.
Paul created a video series on GE2PAK. These tutorials describe the program and will give you a solid working background.
Details and free downloads of GE2KAP via GdayII