In this episode of Founder Stories with host Chris Dixon, Dixon sits down with The Lean Startup author, Eric Ries.

Ries tells Dixon he jumped into the startup game in the late 90′s and like almost everybody else at the time, “when the bubble crashed we were completely toast.” Leaving the carnage behind Ries headed to Silicon Valley with the mission of learning “professional entrepreneurship.”

In the Valley Ries joined There, which he describes as a “Second Life competitor.” There had tens of millions of dollars in funding and top-tier talent. After five years in stealth development, it also had a high profile, unspectacular rollout which Ries remembers as “embarrassing and humiliating.”

Lesson learned, or so he thought. Ries launched IMVU, where “instead of spending years and millions of dollars in stealth mode we put a product in customers hands in full open public beta in six months.” Unfortunately IMVU also had a less than stellar initial release, but Ries tells Dixon the experience ultimately helped IMVU get the model right and led to him forming what would become the Lean Startup methodology.

In the video below, Ries and Dixon discuss what being lean means. Key concepts include iterating quickly, rapidly putting product in customers hands and getting feedback from customers. Ries agrees that lean “has nothing to do with the amount of money you raise.”

Watch the full episode for additional insights and be sure to catch past episodes of Founder Stories, which feature leaders including Dustin Moskovitz and Kevin Ryan.

Part II of Dixon’s conversation with Ries is coming up.

Virtual hangouts are where people can engage each other using imaginary characters in imaginary environments. They have been around and popular in Europe and Asia for years. However, they appear to be gaining traction in the United States as of late. Some commentators even believe that the type of experience provided by these destinations could very well become integral to the forthcoming Web 3.0 era.

The newly released MultiVerse platform, which is designed for the creation of online 3D worlds, certainly anticipates a future in which developers demand the tools necessary to build niche virtual communities because such communities have gone mainstream.

Currently, virtual hangouts differentiate themselves by targeting particular audiences and providing certain types of immersive experiences.

Destinations such as Club Penguin and Barbie Girls cater to children and pre-teenagers with their simple user interfaces, basic games, and cartoon graphics. Other immersive worlds such as Second Life and Habbo Hotel shoot for a broader audience by providing more advanced chat capabilities, more realistic simulations of reality, and tools to design objects and surroundings. Then there is Red Light Center (NSFW), which targets mature adults to give them an altogether more explicit breed of entertainment.

The worlds meant for children are designed with a concern for the safety and security of their users. Webkinz, for example, only lets users chat with a preselected assortment of phrases so no one can say anything inappropriate or share personal information. The services meant for general audiences lack such restrictions and theoretically can be enjoyed by all types of people, although this freedom often translates into behavior that would be utterly inappropriate for children. Second Life, for example, does not explicitly promote adult behavior but has become notorious for it nonetheless. Embracing the more voluptuous side of human behavior, services like Red Light Center are professedly all adult, all the time and encourage users to participate in explicit behavior.

Virtual hangouts range not only in the audiences they target but also in the level of immersion they provide. Some, such as Second Life and Active Worlds, put you in 3D-rendered environments with first person points of view in an attempt to approximate virtual reality. Others, such as Gaia (“the world’s fastest growing online world hangout for teens”) and Barbie Girls, use sprites (two-dimensional pre-rendered figures) to provide a bird’s-eye view of characters moving around in largely static settings. Even further down the immersion scale, the “worlds” of certain services such as Cyworld and Neopets are produced simply using HTML images and Flash animations.

Hangouts intended for younger audiences are generally less immersive than those meant for more mature audiences. Perhaps the only reason for this lies in a child’s inability to navigate more complex simulated worlds. However, children and pre-teenagers may also get something entirely different out of virtual hangouts than adults. While adults are presumably drawn to these services because they provide the opportunity for escapism, younger audiences may treat these products as interactive cartoons and toys. Thus, while all of these services provide a similar opportunity to hang out virtually, they may possess fundamentally distinct appeals for different demographics. The variety in immersion levels will probably continue to reflect these differences.

The chart in this post provides a basic comparison of these services to convey the range of virtual hangouts that currently exists. It should be noted that we tried to draw a distinction between online worlds where people hang out and worlds where people play role playing games, as is the case with World of Warcraft and Entropia Universe.

The following services are included in the chart:

• Active Worlds
• Barbie Girls
• Club Penguin
• Cyworld
• Dubit
• Faketown
• Gaia
• Habbo Hotel
• IMVU
• Kaneva
• Millsberry
• Mokitown
• Neopets
• Red Light Center (NSFW)
• Second Life
• There
• Webkinz
• Zwinktopia