Today’s topic is only tangentially a Web application, but it is so amazingly cool that I felt I had to include it here in the Web Applications newsletter.

The object of my enthusiasm is ooVoo, a video calling and conferencing system that raises the proverbial bar quite remarkably.

OoVoo installs painlessly on Windows 2000, XP, or Vista (OS X is due for release in the near future) and works with any standard USB camera and Windows sound system microphones and speakers. After installation you need to create a new ooVoo account, which requires at the very least an account name (AKA your ooVoo ID), account password, and your e-mail address.

You then add contacts by finding them in the ooVoo directory by name, e-mail address, or ooVoo ID and send them a connection request and once they confirm you can connect (all of the confirmations are done via ooVoo. OoVoo can also import addresses from Outlook, Outlook Express, and Windows Live Messenger.

Here’s where the ooVoo voodoo happens: ooVoo allows you to connect with up to five people simultaneously and does an amazing job of optimizing and prioritizing network traffic. Generally the quality of both audio and video is outstanding (actually this is some of the best video performance I have seen outside of high-end systems with high-speed connections!). In really marginal environments ooVoo will try to keep the audio running at real-time rates and freeze the video images if necessary.

The ooVoo user interface is very cool, boasting that kind of polished, animated presentation that I associate mainly with OS X applications (the OS X version should look very good). When you connect to one or two people the display is organized as 3D panels – for four or more people the display changes to a more conventional grid layout of three windows over the remaining windows.

What if your contact isn’t online? You can send another ooVoo user or, using the built-in e-mail service, anyone, a video message of up to 1 minute (if the recipient isn’t an ooVoo user the e-mail message contains a link to download the ooVoo software). Even better, you can instant message to any user (even one not in your current video conference) using ooVoo’s Jabber-based system and send and receive files.

So how does ooVoo work? OoVoo uses a presence server to establish calling endpoints and then for two person conversations the endpoints create a person-to-person connection. For three or more endpoints or where the ptp network conditions are marginal ooVoo routes video and audio data via ooVoo’s servers.

Mark Gibbs is a consultant, author, journalist, columnist and blogger.