Debate remains great about whether or not popular micro-blogging Web site Twitter, which lets us post 140-character updates on what we're doing or commentaries on things, is a viable enterprise tool.

There are instances burbling up that Twitter is used in business or enterprise communications and collaboration. Just today, as I'm writing this, Dell is using Twitter to let press and customers ask Dell executives questions about its new laptop line.

Check out the Twitter user group, called Digital Nomads, here. Clearly, the group is intensely popular over such a short period of time, with hundreds of tweets lighting up the page.

In the Dell case, Dell spokespeople did a decent job letting followers know what was happening over the course of the event. For example, Dell officials told us who was coming onstage, and when.

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