Microsoft has reported year-on-year growth of over 77 per cent for Live Search in the US.
The search engine recorded the increase by reaching more than 0.98 billion searches and increasing its market share by nearly five per cent to 13.3 per cent in May.
Google still remained the market leader recording annual growth of 46.3 per cent and Yahoo! came second with 20.3 per cent.
Google and Yahoo! were challenged by Microsoft this year due to the release of its Windows Vista software which allows the user an integrated version of Live Search.
Microsoft announced earlier this month that it had recorded an extra 300 million additional searches during June.
The reason for the surge was the chicken-themed letter scramble game Chicktionary which generates searches in Live Search as the player takes part.
Chicktionary allows Microsoft to add an extra 35 search queries to its total each time the game is played, regardless of whether or not the player uses the search results.