The Global Business Travel Association says that group travel spending will grow 5.3% to $117.1 billion this year. But the total number of business travelers expected to go on trips for meetings, conventions and other group travel will fall 0.3% to 166 million people. "Meetings is a pretty big business for the hotel industry, and what we felt is that there really isn't a lot of differentiation in the industry, and there haven't been a lot of innovations in the last 50 years," says Peggy Roe, vice president of global operations for Marriott International. Here are examples of some new amenities hotels are offering. Get the full story at USA Today