This map service allows you to browse the Natural Earth dataset at different scales:

Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110m scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.

MagicPrefs is a free menubar application for OSX which aims to improve the functionality and configuration options of the Apple Magic Mouse.

It features the ability to bind a variable number of finger clicks, taps, swipes, pinch and other gestures to functions like Middle Click , Hold Down Both Mouse Buttons , Spaces , Expose, Dashboard etc.

Touch Sensitivity implements a single point control for a number of factors impacting the algorithms of the taps, swipes, pinch and other gestures.

Tracking Speed adds the ability to increase the maximum mouse speed by a extra 200%.

Also featured is a real-time display of the fingers touching the surface of the mouse that you can enable to test and monitor the way the mouse sees your input.