"Wikis, a blogosphere, social networking software, and prediction markets all facilitate Enterprise 2.0 as I’ve defined it, but they’re clearly not identical technologies, or even closely similar ones.

But how are they different? Do they to dissimilar things for companies, and to them? And when is each the ‘right answer?’ Answers to these questions arise from the realization that a knowledge worker will want to use a different E2.0 technology at each ring in the bullseye."

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