The redesign features a new look and enhanced navigation and interactivity, with users now able to access their Yahoo! Mail and Messenger accounts on the homepage.
The homepage also incorporates new products such as Yahoo! Answers, alongside news, weather and entertainment news.
The new homepage will feature frequent updates throughout the day as part of Yahoo!'s strategy to encourage users to spend more time on the site.
Yahoo! aims to drive traffic and continue to grow its page views, which increased 41% year-on-year in May 2006.
The new homepage also aims to capitalise on this growth for advertisers, with a permanent ad placement offering for advertisers.
Brands can purchase a spot within the Yahoo! Market Place, which includes Yahoo! Cars, Yahoo! Travel and Yahoo! Shopping. The spot contains an image and direct link to drive users to the advertiser's website.
Blake Chandlee, UK commercial director at Yahoo! UK and Ireland, said: "The new Yahoo! homepage is an exciting new proposition for advertisers to interact more with their target market and in doing so allow the user to engage more with their brands."
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