If you are a fan of browsing and downloading Landsat data and satellite imagery, you'll love Libra!

Libra provides a really neat and easy to use interface for sorting and downloading from more than 275 Terabytes of open Landsat imagery. There are no restrictions on the use of Landsat open data and it can be used or redistributed as you require. Each circle on the Libra map represents the number of available images at that location. You can filter the available images by date, cloud cover percentage and by sun azimuth angle.

I for one am delighted to find some satellite imagery that you like and you can download it and use it in my own maps.  Thanks GMaps Maniac!