How did Google start making their money before Google went public 2005?

bbll316: How did Google start making their money before Google went public 2005?
Just tell how Google got enough money to buy youtube and how the two owner became billionaires?

Thanks for your help.

Answers and Views:

Answer by tsizwiz
Simple question, their ideas clicked. this is risk sir.

Answer by imisidro
Before Google went public, they got loads of money from venture capitalists and investors — $ 25 million round from Sequoia Capital and Kleiner Perkins in 1999,

Adwords was launched in Oct 2000. Their content network, Adsense was launched in 2003.