At a backyard barbecue last summer , Mr. Karim showed the site to a friend , Keith Rabois , a former PayPal executive who now works at LinkedIn .
Keith Rabois /business/person/company PayPal
IN DT NN NN JJ NN , NNP NNP VBD DT NN TO DT NN , NNP NNP , DT JJ NNP NN WP RB VBZ IN NNP .
Keith Rabois
PERSON
PayPal
ORGANIZATION
/business/person/company