Google Baraza is Google alternate to Yahoo Answers. Baraza is divided into popular categories like Business, Health, Computers, Travel, Education, Agriculture and many more. Users with Google Account can login to Baraza and put their questions in the appropriate category. Well if you are an expert in any field then you can help others by providing answers to the queries. Once you are popular enough your reputation point increases and your name is displayed on the homepage.

Even though you can support users, you are not allowed to spam or promote anything of any kind.

You can have a look at it – Google Baraza Homepage.