The Facebook Fanboy Panel @ Graphing Social Patterns
Dave McClure posted a video recording of a high profile panel discussion about monetization of Facebook. Pretty entertaining, and slightly informative.
I'm not sure why everyone is comparing Facebook to Google. They have different products completely. Similarly, people seem to want to compare Google to Microsoft.
If Facebook was the same thing as Google, they wouldn't exist. If Google was the same thing as Microsoft, they wouldn't exist either.
This is what they have in common: Each of these companies found an area that nobody else was doing well. They capitalized, and did it well enough to keep competitors out.