Provisional Patent Template Inventor Assistance - Do it yourself template that assists inventor's in completing and filing a provisional patent application. - http://www.provisionalpatenttemplate.com/
Will It Sell? - Book for inventors relating to determining marketability and other issues. - http://www.willitsell.com/
GreatIdeaGear.com - Books and software for inventors on intellectual property, licensing, and marketing. - http://www.greatideagear.com/
From Patent to Profit - Book that guides inventors through the invention process including information about patents and invention marketing. - http://www.frompatenttoprofit.com