With the recent introduction of WolframAlpha a 'computational' search engine, and now Bing from MSFT the rhetoric and war stories are flying. Investors are on needles and pins.
Here's a wonderful post detailing a MSFT/Yahoo meeting from the early days of the web.
You also have to appreciate the kick in the pants style of Carol Bartz, who makes Margaret Thatcher seem like a shrinking violet. Here's her comments at D7....watch the video too.