Another Nominative Fair Use Example?

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Twitter seems to be going strong, despite early questions about whether it would ever shed the notion of being a waste of time, as evidenced by this currently running billboard ad:

To the extent this billboard looks familiar (admittedly a more diminutive glass here), you might recall my questions about it three years ago: Marketing Nirvana for Twitter?

Kyle did a pretty solid job of answering those questions, do you agree with his assessment?

Here are a few more: Is it time for a new Summit billboard ad? Does Summit only buy billboard ad space obstructed by power-lines?

For other possible examples of nominative fair use, check them out here.