Facts are not copyrightable. Compilations of facts may be copyrightable. Feist Publications, Inc., v. Rural Telephone Service Co., 499 U.S. 340 (1991).
For an introduction to the issues and the laws, read this law review article. Michael Froomkin, Cyberspace and Privacy: A New Legal Paradigm? The Death of Privacy?, 52 STAN. L. REV. 1461 (2000). http://www.law.miami.edu/~froomkin/articles/privacy-deathof....
This case deals with exceeding authorized access on a website: Konop v. Hawaiian Airlines, Inc., 302 F.3d 868 (9th Cir. 2002) http://www.internetlibrary.com/cases/lib_case32.cfm