How Blogs Make Money

There are multiple ways that a blog can make money.  Below is a list of some of those ways, feel free to comment and add more.  (This article goes into more detail)

1. Advertising Programs
2. RSS Advertising
3. Sponsorship
4. Affiliate Programs
5. Digital Assets
6. Blog Networks
7. Business Blog Writing 
8. Non-blogging Writing
9. Donations
10. Flipping Blogs
11. Merchandising 
12. Consulting
13. Speaking Engagements