SAN JOSE, Calif. - Online professional network operator LinkedIn Corp. filed suit in California federal court on Jan. 6 against Doe defendants that it claims are responsible for creating "thousands of fake . . . member accounts" that have polluted the network and "undermine$(d$) the integrity and effectiveness" of it (LinkedIn Corp. v. Does 1 through 10, No. 5:14-cv-00068, N.D. Calif.).