Why hasn’t Microsoft or Yahoo, not Google, acquired LinkedIn yet? The struggling AOL could benefit from buying LinkedIn too. LinkedIn is a good target right now. Facebook could be a perfect fit for LinkedIn too, just not Google. Google and LinkedIn would be like butter and water, just won’t make a good mix, but its 40+ million professional users could add more value to AOL (as long as AOL changes its name and rebrands) or Facebook (especially if Facebook does an IPO this year), than is for Yahoo! or Microsoft. Facebook will benefit more from LinkedIn, due to LinkedIn’s solid business model of paid fees for value-added membership services for professionals.