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Kutcher adds Airbnb to a long list of startup investments that include Foursquare, Path, Flipboard and Fashism. In Airbnb's case, Kutcher will also join the team as a strategic advisor.
"With Ashton on board, we’ll be working together to take our community engagement to the next level and expand our international presence to reach more people from different cultures all over the world," says a blog post on the Airbnb website.