Note: The Skinny blog is written by Rick Smith, editor and co-founder of Local Tech Wire and business editor of WRAL.com.

CHARLOTTE, N.C. – Author, blogger and technology consultant David Linthicum is going out of his way to cool off the hottest wave in IT today – cloud computing.

Not that he doesn’t believe in the value of sharing IT and computing resources over so-called “cloud” environments. He loves the idea of an enterprise being able to “burst” up demand for IT horsepower “in 6 seconds rather than 6 minutes or 6 days.”

But Linthicum, addressing the in Charlotte on Wednesday, said just because most companies want to get onto a cloud doesn’t mean it is the right solution for every enterprise.

“I’ve never seen anything like this in my 25 to 30 years in this business other than people moving into the Internet in the 90s,” said Linthicum, who is chief technology officer of the Bick Group. His newest book, “Cloud Computing and SOA Convergence,” focuses on clouds.

“This is real stuff,” he stressed. Not just hype.

And as far as people looking for work, the “cloud” is the place.

“Job demand is off the chart,” he said. “It’s like a land grab.”

(The SaaS Road Show event moves to Raleigh today. For details, )

However, time after time in his presentation, Linthicum raised points of concern.

“We are creating new silos [for data].”

“Interoperability [among clouds] is a big push back.”

“There is not a lot of interplay out there.”

Even as popular as Software as a Service (SaaS) has become with the ‘cloud” further boosting it, Linthicum noted that some enterprises are moving back to their own “on-site solutions.”

An “Intercloud” – what he described as a “mini-Internet” will someday link clouds “but it’s a complex problem to solve.”

He also noted that “we will see more private clouds going forward.”

An emerging use is what he called ‘community clouds” in which hospitals, for example, can partner up to share resources while at the same time retaining control.

As for enterprises looking to move onto the cloud, Linthicum cautioned that every company needs to closely consider it’s options. Unlike what hype says, for example, cloud computing isn’t always a cost cutter.

"This is a maturing technology," which means there are risks from security to outages to meeting service level agreements.

“Do your homework.”

“Cloud computing is not always cost effective.”

“Not all computing resources should exist in a cloud, private or public.”

In other words, look for skydiving into those white clouds of opportunity. They could turn quickly into a thunderstorm.

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