Brian X. Chen for the New York Times:

Last week, the Courtyard by Marriott hotel in Midtown Manhattan was discovered to come with some hidden extras: The free Wi-Fi connection inserted lines of code for serving special ads into every Web page a guest visited.On Monday, Marriott International said it had investigated the situation and disabled this feature at two New York hotels: the Courtyard by Marriott as well as its sister, the Residence Inn.

This was a lousy practice, apparently done without Marriott’s approval. Glad to see them put a stop to it. Hotel Wi-Fi usually sucks enough on its own; don’t need a greedy ISP making things worse.