Data Size Viewer (2013)
The DataSizeViewer project is a simple extension for Atmel Studio to make it a little easier to find out where all the space in your target device is going; it presents a list of symbols (functions, variables, etc.) and their associated sizes in the compiled binary. Created in collaboration with my friend and co-worker Morten at Atmel.
Double-clicking a symbol jumps to its location in the project source code, and symbols can be filtered by location and/or name.