Windows Live Writer is a great blogging App if you like to do things on the computer and out of the browser. It is part of the Live Essentials Pack and works fine with Windows 8 or Windows 8.1. For a list of all the language versions of Live Essentials go here:
http://windows.microsoft.com/en-us/windows-live/download-windows-essentials
You will need to have .NET 3.5 Framework installed – but it should prompt you if you haven’t