Fark.com has sued a man it accuses of attempting to hack into the e-mail and computers of its staff members. The Web site, founded in Lexington, allows members to comment on postings of oddball news stories. It has developed a large national following. The lawsuit, filed in U.S. District Court in Lexington on Tuesday, says an unknown computer hacker sent e-mails on Aug. 8 imploring Fark staff members to visit a particular Web site. For the next four days, Fark staff received forged e-mails that appeared to come from other staff members, containing links to three Web sites. The links...