Geology:

Tectonic Plate Names - Very useful for students of plate tectonics. A Google Earth (kmz) file with 52 major and minor tectonic plates la USGS and Peter Bird (UCLA). Color coding of plate boundaries to denote continental and oceanic convergent boundaries, continental and oceanic transform faults, oceanic spreading rift boundaries, continental rift boundaries, and subduction zones. Check back for revisions. I'm adding Euler poles and plate velocities.

GSSP List (kmz file) - Another Google Earth file useful for geology professionals or students. This file contains GSSP (Global Boundary Stratotype and Section Point) locations listed on the website of the International Commission on Stratigraphy (stratigraphy.org).