Checklists are great "easy to use" tools that will help get you started in spotting the general issues, concerning your endeavor.
General Startup Issues:
Business Startup Checklist I
More In-depth Startup Issues:
Business Startup Checklist II
Multi-Party Projects:
Joint Venture Agreement Checklist
Collaboration Agreement Checklist
Buying, Selling, Distributing Goods or Services:
Distributorship Agreement Checklist
Disclosing Trade Secrets:
Confidentiality Agreement Checklist - Non Disclosure Agreement Checklist (NDA checklist)
Hiring Employees or Independent Contractors:
Non-compete Agreement
Buying a Business:
Business Acquisition Checklist
Authors, Illustrators, Ghostwriters, Publishing Businesses:
Publishing Agreement Checklist
Other Business Law Information:
Entrepreneurs Law Blog