Below we have collected some of the best "go-to" articles on building a startup, which we will be adding to over time.  We welcome your suggestions!

Accounting

• Accounting Software Advice
• Sample Break Even
• Sample Cash Flow
• Basic Accounting Information
• An Accounting Guide For Startups
• Sample Balance Sheet

Customer Service

• UserVoice
• Get Satisfaction

Documents

• Consulting Agreement for Hourly Work from Gunderson Dettmer LLP
• Standard Master Agreement for Design Services from AIGA
• Employment Offer Letter for CTO of Zynga

Entrepreneurship

• Shai Goldman's Startup Presentation to Students at CCNY

Exiting

• What drives great entrepreneurs | For Entrepreneurs
• The most common way to get rich from a startup is to sell it
• NYT - Small Business Guide

Founder Equity

• Peter Thiel: Best Predictor of Startup Success Is Low CEO Pay
• The only wrong answer is 50/50: Calculating the co-founder equity split
• What entrepreneurs need to know about Founders' Stock

Incorporation

• Incorporate Your Business - LLC vs. Scorp
• How to Incorporate a Small Business
• Top 20 NYC Startup Lawyers
• Surprisingly Simple
• Choosing a business structure - LLC vs. C-Corp vs. S-Corp vs S-Corp
• C Corporation vs S Corporation vs LLC

Legal

• Startup Lawyer

Managing Your Company

• Project management and workflow with Basecamp | Social Signal

Payments

• Weebly
• Yola
• PayPal
• Amazon Payments

Personal Storage

• Dropbox
• Box.net

Presentations

• Prezi
• SlideShare

Project Management Tools

• PBworks
• Pivotal Tracker
• BasecampHQ

Recruiting

• Startup Recruiting: Startup Recruiting: Adventure vs Job - Forbes

Sales

• Eric Ries
• Steve Blank

Sharing

• AddThis
• Facebook Like
• Ning
• ShareThis

Taxes

• Income Tax Basics For Your Startup (via Entrepreneur)
• IRS Small Business Information
• Practical Self Employed Tax Tips (via StartupBusiness)