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EnlargeLinda Avey

EnlargeAnne Wojcicki

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Would you share your genes with a stranger? Linda Avey and Anne Wojcicki are co-founders of 23andMe, a startup that attempts to consumerize DNA testing and envisions creating social networks based on genetics. Customers pay $999 for a test kit, spit into a tube, mail it to the lab, and get an analysis of nearly 600,000 data points on their genome revealing information about ancestry, individual traits, and potential susceptibility to various diseases. Customers also get access to an online Genetic Explorer where they can surf their own genetic information, share it with others, and get updates about this exploding scientific field. If this doesn't sound like a business plan to you, consider that the company has success in the family, at least by marriage: Wojcicki is the wife of Google cofounder Sergey Brin. Google invested $3.9 million in the startup.

How did the two of you start working together?

Avey: Anne and I both shared this frustration that all this great technology was being developed but it really wasn't being leveraged in a way that was benefiting society as much as it could.

What's your vision for social networking?

Avey: When we talk to people who have a disease or a very interesting trait they're always interested in finding out who else is like them and how they can form communities to share information. We want to build this platform that allows people to connect in ways they haven't been able to before.

Have you seen such communities form yet?

Avey: It's really early and we haven't really put out the ability yet. But just in the early stages, because we can share our accounts with other people, we've been able to connect people who share the same maternal haplogroup for example. People find that a point of conversation: "Gosh I'm from Estonia, where are you from?" Suddenly they start connecting on a very different level.

Do you see social networks forming around diseases or certain traits?

Avey: All of those things. We think our customers are going to come up with their own ideas about how to connect. It's sort of like Facebook where people create applications on top of the platform. There are going to be groups that form that we never thought of. We talked to one guy who had Marfans and he said, I can get word out to my community of people who have Marfans, all sign up for 23andme, form a community, and trigger some research based on our genetics.

I'm sure you've had your own DNA analyzed. Did you discover any surprises?

Wojcicki: I had my whole family genotyped. My sister found out she's a carrier of Bloom's disorder. We have a feature called family inheritance where I can see where I'm genetically identical to my sister and where I'm half similar to my sister. Bloom's is on the gene BLM so I was able to type in BLM and see I'm genetically identical to my sister there. I was able to deduce I'm probably likely to be a carrier.