It's a bunch of hippies living on a farm. So because I'm anarchist I have to live an 18th century lifestyle, InBitWeTrust? I call bullshit.
Now you are just making up facts. They aren't anti-technology. They are just environmentally conscientious.
They have computers, solar hot water, photovoltaic solar electricity, and plenty of vehicles:
"Twin Oaks collectively owns a fleet of about 18 vehicles (including cars, pick-up trucks, cargo vans, and a mini-van) for our approximately 85 adult members."
"We collectively own about 15 public computers, many of which are networked with each other and connected to the internet. They are available for both community work and personal use. We share a T1 connection--with the dozens of users we have though we generally can't stream video and we don't allow file sharing.
Many members have their own personal computer (laptops and desktops) kept in their bedrooms, which they can use for either community work or personal use. Most members have email accounts and use them for both internal (within the community) and external communication. As you've discovered, Twin Oaks has an extensive webpage and several members have their own webpages.
"