If social media, and in this case, LinkedIn, manages to make true on its promises and delivers solid top and bottom-line growth, then talk of a bubble is no more than pure speculation.
The problem with this strategy, however, is that Cisco end up paying top prices for Net Speed and Growth Networks acquired at the peak of the high-tech bubble.
When the technology bubble burst, pension funds were left with worthless stakes in private-equity deals that had gone sour, on top of the damage done by tumbling stockmarkets.