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Online video from TechRepublic features quick peeks at new technologies and hot products, tips and hacks for improving IT and digital living, and technology news and analysis from ZDNet.

What is WAP?

August 10, 2005, 9:49pm PDT

Wireless Application Protocol allows you to access the internet from your cellular phone. Burton Katz of Buongiorno explains how it works and says that with faster cellular networks, better screens and more compelling content -- it's here to stay.
Scaling an Internet architecture

August 3, 2005, 10:12pm PDT

Any great website eventually runs out of capacity. Horizontal scalability with load balancers between the tiers offers redundancy -- keeping the site up and running.
What Is a Wiki?

August 2, 2005, 11:12pm PDT

Many people collaborate on projects via e-mail. But e-mail threads can be cumbersome, attached documents can get lost, and who has the latest version anyway? Wikis allow everyone who has access to a page to read and change it.
The Exchange-Blackberry Battle

July 21, 2005, 9:05pm PDT

The Blackberry is the current champ in the PDA market, but it may be under threat from Windows Mobile because Exchange Server 2003 SP2 allows smart phones to scale to a level that the Blackberry can't.
Rootkits

July 21, 2005, 8:54pm PDT

Rootkits attack deep within operating systems and make themselves invisible to the anti-spyware and anti-virus software sent out to detect them. Learn how to use rootkit detectors, which use the same tricks as the rootkits themselves.

Ready, set, too late! Superworms!

May 24, 2005, 9:15pm PDT

A new class of worms that spread like lightning is turning security on its head. Charles Renert of Determina says updates can't protect you and by the time the worm hits, it's too late.
Security's hidden costs

May 24, 2005, 9:04pm PDT

The costs of security in terms of downtime and clean-up can be considerable. But as Determina's Charles Renert explains, there are also hidden costs, such as false positives and performance hits.
Blades break down barriers

April 4, 2005, 10:33pm PDT

In the traditional data center, storage, network and server experts don't tread on each other's turf. But as these tiers converge in blades servers, there's potential for a big shake-up.
Sony Metreon unveils the Walk of Game

March 11, 2005, 7:39pm PST | 1

Game icons and pioneers such as "Sonic," "Mario" and "Pong" creator Nolan Bushnell were immortalized at the Sony Metreon in San Francisco as the Walk of Game was unveiled to honor of the industry's top achievers.
New and improved peer-to-peer

March 9, 2005, 12:07am PST

Peer-to-peer networking now involves pulling down bits of files from multiple connections, ensuring lower failure rates and improved efficiency.
Beware of spyware

March 8, 2005, 9:15pm PST | 1

How does spyware get its hooks into your computer and what can you do to remove it?
Password Basics

March 8, 2005, 9:13pm PST

No matter how secure your network is, the weakest link is your password. Learn how to create and remember your passwords and keep them safe.