*  Sidney Blumenthal, et al. v. Matt Drudge and America Online, Inc.
      992 F. Supp. 44 (D.D.C. April 22, 1998)

      The court denied defendant Drudge's motion to dismiss for want of personal jurisdiction. Drudge's maintenance of an interactive website, on which his Report appeared, which permitted users to subscribe to the Drudge report via e-mail, and solicited contributions from forum residents to defray publication costs, combined with other contacts with Washington D.C., including a visit to D.C. to promote the report, and mail and phone contacts to obtain gossip, made the exercise of jurisdiction over him appropriate.)

It's on this very useful site - a library of internet defamation cases.