Yahoo uses CPA networks like Commission Junction to advertise. As it is a big company they surely uses more than just CJ but You can always join yahoo affiliate and help promote Yahoo and get firsthand experience on how yahoo makes their money. http://www.cj.com
Almost everyone from Asia are using yahoo especially YM. They earn a lot from ads on YM and they are not sharing even a small portion of their revenue.
pretty much... mostly advertising i would guess... you know all those banners in emails? imagine how many times those banners are shown.. you can imagine the ctr is probably pretty horrible, but, hey, their making somethin
Yes but they have some terms and conditions which have to be followed. Google Adsense approves all type of webiste low traffic and high traffic. To join yahoo publisher netowork you have to contact them from yahoo publisher site.