Internet Access in Virgin Clubhouses

My wife and I will spend some time at the JFK and LHR Virgin Clubhouse in June. We will not be carrying a laptop computer with us. My question, though, is whether there is any internet access at the JFK and LHR clubhouses for a passenger without a personal computer? There will be no need to check e-mail. My wife simply needs to access some web sites for a correspondence course she is taking. If there is such access, what is the protocol for using the computer? Is there a charge? Thanks in advance for any replies.