It's a shame you're continuing with your snark - if you work in tech, I'm sure you could use your imagination on the myriad of ways that many employees could still be generating value, or you could even do a quick search and satisfy your own curiosity.
More recent: https://www.investopedia.com/articles/markets/121015/how-yah...
Older, but more clearly laid out: https://fourweekmba.com/how-does-yahoo-make-money/