Tomorrow’s Cloud Computing Roundtable is sold out. But we have good news. For those of you who can’t join us in person, we will be live-streaming the event. Thank you to Sun Microsystems for sponsoring the roundtable stream (powered by ustream and camera work by FutureWorks.) Tune in on TechCrunchIT or Sun.com/cloud

TechCrunchIT editor Steve Gillmor and I will be grilling our panel of cloud-computing heavyweights about where we are with this technology and where we need to go. As Gillmor wrote in a post on TCIT:

Short term, cloud computing will slip in as a cost-saving rationale. Near term, the social clouds will expand across workgroups, across business domains, and finally cross-cloud. Then the Golden Age of the Cloud will occur, where applications and services only possible in that environment will guide the next wave of business architecture.

On Friday, the dialogue will be about when, not if. When did cloud computing begin? How far are we into the cycle? Is cloud computing a baby or an old man in diapers, and are we going backwards or forwards so fast that we can’t tell the difference? Or are we and cloud computing meeting in middle age, each ready for the other?

I am also happy to announce the startups who will be giving the main demos prior to the roundtable and the panel of judges who will be evaluating them. Here are the companies and what they will be showing off:

Veodia—Video recording through the cloud.
BrowserMob—Stress testing Websites via virtual browser instances.
Diomede Storage—Cheap, green storage with power-saving technologies at one tenth the cost of Amazon S3. Or so they claim..
Appirio—Stitching together three different clouds. Can it be done?

They will be judged by:

Dan’l Lewin, Corporate Vice President, Microsoft
George Zachary, partner, Charles River Ventures
Geoff Ralston, CEO LaLa
David Bernstein, VP/General Manager, Cisco
David Kralik, Silicon Valley office Director of Newt Gingrich

And then we will hold the roundtable. Again, our roundtable participants will be:

Marc Benioff, CEO, Salesforce.com
Vic Gundotra, VP Engineering, Google
Amitabh Srivastava, Corporate VP, Windows Azure
Lew Tucker, CTO, Cloud Computing, Sun Microsystems
Scott Dietzen, SVP Communications Products, Yahoo
Paul Buchheit, Co-founder, FriendFeed; creator of Gmail
Werner Vogels, CTO Amazon
Mike Schroepfer, VP of Engineering, Facebook
Gina Bianchini, CEO, Ning
John Engates, CTO, Rackspace

Roundtable Moderators:
Erick Schonfeld, co-editor TechCrunch
Steve Gillmor, editor TechCrunchIT

Thank you to Microsoft and the BizSpark team for hosting us at their Mountain View campus. And thanks to Charles River Ventures, Ribbit and FathomDB for sponsorship support of the roundtable and reception.  We looking forward to learning more about a dozen early-stage companies at the roundtable reception.

We have a few tables left for companies who would like to demo product at the event, but otherwise we are over capacity. Contact Jeannie with sponsorship inquiries (jlogo@earthlink.net)