nonprofit management question

1. Why should a not-for-profit incorporate and what are the basic steps to accomplish this?

2. What needs to be done to attain 501(c)(3) tax-exempt status with the Federal Government?

3. What are the bylaws and why are they important?

4. What are the main things a not-for-profit needs to do in order to keep its corporate status on an ongoing basis? ...its 501(c)(3) status?

5. What is unrelated business income and why is it important for not-for-profits to account accurately for it?