Wikipedia:Gothic Keyboarding

Microsoft Windows NT4, Windows 2000, Windows XP and Windows 2003

 * Gothic Keyboard Layout from BabelStone
 * Robert Pfeffer's Gothic Keyboard Layouts based on the keyboard layouts of different languages
 * The Microsoft Keyboard Layout Creator can be used to make your own Gothic keyboard layout if you do not wish to use BabelStone's.

Apple Macintosh OSX

 * A. Keidan's Gothic script keyboard layout
 * Gothic Language Kit (commercial; $19US) from XenoType Technologies
 * The Ukelele Mac OS X Keyboard Layout Editor can be used to make your own Gothic keyboard layout if you do not wish to use one of the above].

Javascript method

 * http://marnanel.org/gothic