MICROSOFT’S Bing platform started powering Yahoo! searches in the US and Canada today following the 10 year partnership that was announced last year.

Under the arrangement formed by the two companies, Microsoft will manage the search function using its Bing search engine while Yahoo! will manage the advertising businesses on behalf of both companies.

English language searches are the first to be transitioned from Yahoo! to Bing with others to follow in the forthcoming weeks and months.

Despite with the addition of Yahoo!, Microsoft trails the Google search giant in the US.

According to Comscore, Google holds 65 per cent of the search market versus the 28 per cent held by Microsoft.