How many other times have techcrunch reported "company x in late stages of being acquired by Google/Yahoo/Microsoft" followed by "Talks for company x being acqu

How many other times have techcrunch reported "company x in late stages of being acquired by Google/Yahoo/Microsoft" followed by "Talks for company x being acquired break off?" I'd suggest quite a few. I realize that this can actually happen, but if it happens often enough then the story becomes non-news.