Summary Box: UK legal claims served on Facebook

STATUS UPDATE: Legal authorities say that a High Court judge in England has approved the use of Facebook to serve legal claims.

THE DISPUTE: The case pits two investment managers against a brokerage firm they accuse of overcharging them. The judge permitted the unconventional method of service during a pretrial hearing.

WHY FACEBOOK: One of the lawyers in the case says a copy of the lawsuit was left at the last known address of a defendant, but it wasn’t clear whether he was still living there.