A quick note for non-Catholics: there aren't "official" patron saints of the Internet or anything else.  Sainthood is an official designation.  Status as a patron saint, on the other hand, is bestowed by popular acclamation and use among the laity: if enough people involved with the Internet ask St. Isidore for intercession regarding it, then he is the patron saint of the Internet, but it could just as easily be St. Patrick (or the two of them simultaneously, for that matter).<p>(St. Patrick is popularly held to be the patron of a few dozen things of things, including -- totally not making this up -- engineers, expatriates, and the Irish, so I hit the trifecta there.)