What defines a community is more than its geographic boundaries; it's the element of people gathering together for a common cause, supporting each other's well-being and interests, and advancing goals that strengthen both the community and its members.

Since the advent of the personal computer in the early '80s, new kinds of communities have taken shape. Their members first exchanged messages in bulletin-board systems, painstakingly stringing sentences together on Osborne or Kaypro computers and launching them over pre-cyberspace phone lines using 300-bps modems.

In 1985, one of the landmark events was the founding of the WELL, a new computer service by the San Francisco gang that had published the Whole Earth Catalog. In his influential book The Virtual Community, Howard Rheingold described how people took to this new communication medium enthusiastically, forging friendships and relationships that spanned a wide range of common interests -- on both a professional and personal level.

Today, the online landscape is profoundly richer, deeper and more readily available to digital media artists.

As bandwidths increase, processing platforms improve while becoming less expensive, Internet access becomes more affordable, and software applications create new tools for communication, collaboration and play.

Here, we explore the ways in which Internet communities are born and thrive -- from competitions that build knowledge and skills to creative projects that push digital media production in new directions.

Building Communities Through Spirited Competition

One of the best ways to learn something new is to turn the process into a game. This thinking has been the rationale behind a series of competitive events in the software world meant to bring new programmers into the fold, introduce new technologies, identify developing talent and shine a spotlight on the games, graphics advances and programming techniques that will drive the next-generation products.

Dare to Be Digital

This competition helps train young developers and gives them recognition for their work within a high-profile venue. During a 10-week session at the University of Abertay Dundee in Scotland, enthusiastic teams of artists, programmers and audio creators work to produce a prototype video game, with support from a slate of experienced programmers and educators. From this mix of students from Canada, China, India, Norway and the United Kingdom, three winning teams are selected. In 2009, Inertia Interactive received the award for their game Ballistic , which combines miniature golf, pinball and marbles on a challenging course rife with obstacles.

Level Up 2009

The fourth installment of this annual worldwide game demo challenge fielded 91 entries from 19 countries. Contest categories included games optimized for graphics chipsets, best games to play on the go, and the best threaded game. The game creations included a World War I flying game, an off-road racing game, a zombie-fighting action-adventure game, and a ray-tracing puzzle. Judges of this year's challenge included industry luminaries Sid Meier, Will Wright and other experts.

Animate This!

Tricks, fresh approaches, shared knowledge and a supportive environment are key elements of the Animate This! Digital Art Tutorial Challenge . Animators share their content creation techniques and offer suggestions on enhancing existing tutorials in the Artist and Animator Resource Area. In return, individuals who give the five best tips each month receive a voucher that is redeemable for $100 worth of training from The Gnomon Workshop. Participants also gain significant exposure in the industry through having their work posted on the website and used in conference event promotions.

$1,000,000 Make Something Unreal

The $1,000,000 Make Something Unreal contest spanned a two-year period with four phases and 10 winning categories for each phase. Categories -- such as Best New Character and Best New Weapon -- create many opportunities for participants to win prizes and get noticed by game companies.

Crowdsourcing as a Creative Catalyst

Technology -- in the form of a hardware platform and a Facebook collaboration site -- provided the underpinnings for the production of an innovative animated work that tested the limits of how effectively a group of strangers could come together in roughly two months and complete a studio-quality film. Backed by a retinue of corporate sponsors (including Autodesk, Reel FX and Dell), a small army of animators, orchestrated by Yair Landau , gathered on Facebook and produced a high-quality animated short, "Live Music."

Steve Vai , who was drawn into the animation project through a friend, brought in his friend, Ann Marie Calhoun , and they played characters named Riff and Vanessa. "You have to find musicians who are interested in stretching their boundaries," says Vai, "and challenging their potential. Then you, as a bandleader, have to be able to see their potential -- even more clearly than they do. Then you have to give them the opportunity to exercise that potential by creating an environment that nurtures it."

In online communities like these, many artists are creating such an environment.