Geotagger

Add geotags to your photos with Google Earth

An application that allows you to view the GPX files exported from various GPS devices

Access, edit, and save GPX files in a variety of different ways and create waypoints

Simulate your own jaw-dropping, virtual planetarium using only your Mac

An easy-to-use Mac application that helps you improve your writing style

XDrawChem is a lightweight sketching application for students that can draw chemical diagrams on a Mac