DX ToolBox has been updated to version 4.6.3. This update adds several additional ionosonde sites around the world. These show you graphs of the foF2 (maximum returned frequency from vertical incidence) frequency for the past several days, and are extremely useful for determining what the actual propagation conditions are, vs computer generated predictions.
http://www.blackcatsystems.com/software/ham-shortwave-radio-propagation-software.htmlDX Toolbox searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. It also features several propagation forecasting tools, allowing you to quickly and easily estimate current HF (Shortwave) propagation conditions between any two locations in the world. It's ideal for the ham radio operator, shortwave listener, or other radio enthusiast, and is available for Mac OS, Mac OS X, and Windows. A version is also available for the iPhone / iPad / iPod Touch