Yahoo has around 1084 subsites. Among them the top subsites in popularity terms are

Yahoo.com
Yahoo Homepages
Yahoo Mail
Yahoo Search
Yahoo US Mail
Yahoo US Homepages
Yahoo US Search
Yahoo US Websearch
Yahoo Answers
Yahoo News
Yahoo Messenger
Yahoo Geocities
Yahoo Messenger (insider)
Yahoo Messenger (app)
Yahoo US Geocities
Yahoo Music

Keep yourself updated on all the technology news by following us on Twitter or by joining us on our Facebook Page.