Question:
if not,what tool can we use to know the global monthly keyword search in yahoo and bing?
Answer:
Nope. The Google keyword tool only analyzes keywords from its own search engine.
Bing has one called Microsoft Advertising Intelligence, but that’s an oxymoron due to it’s STUPID method of implementation… it’s a plug-in ONLY available for Microsoft Excel.
Yahoo doesn’t have one any more. It used to be called the Overture Keyword Suggestion Tool.