The Society of Ancients offers a free DBA 3 reference sheet.
DBA
DBX Colonial Rules
Pushing Tin offers a set of colonial rules in the DBX style.
Napoleonic DBA Rules
Steve Burt has a set of free wargames rules for playing Napoleonics using DBA mechanics.
De Bellus Middle Earth Rules
De Bellus Middle Earth is DBA variant for playing wargames set in JRR Tolkien’s Middle Earth.
Choosing A Good DBM Army For Competition
Now that the summer upon us, many of you out there will be thinking about making up a killer DBM army for Bob Beattie’s DBM tournament at Historicon. If you’re wondering about the best way to walk away with the trophy, you might want to consider reading this article on choosing a good DBM army for competition.