NEW YORK (Reuters) - JetBlue, Yahoo Inc and Research in Motion plan to offer free, in-flight, Wi-Fi web connections for laptop computers and advanced cell phones, Rim said on Thursday.

The service will allow passengers to access customized Yahoo mail and Yahoo instant messenger services on their laptops or to access corporate e-mails on Wi-Fi enabled versions of the popular Blackberry device from Rim.

According to a spokesperson for Rim the first JetBlue flight offering the service will be on December 11.