For those political analysts whose main interest remains class divisions in society the biggest split these days is that between those who control and work with informational technology (IT) and those we might still call blue-collar workers. The old divisions of class have become a lot more difficult to apply, if not completely outdated. There's no escaping the enormous impact of information technology in the late 20th and, even more, the early 21st centuries, both economically and socially.
During the scientific revolution of the 17th and 18th centuries, the spirit of experiment was in the air, and those involved were practical people working to practical ends - often on their own or with a small group of trusted friends. Secrecy was important as there was money to be made in new inventions. What interested them were results, not theories. Most modern technological advances, however, were developed as theories first, and then made reality by large teams of scientists and experts in the field. What we have now is that more and more of this type of expertise is being used to analyse and find solutions to all kinds of business and social problems, thus creating - in the eyes of the political analysts mentioned above - a whole large new economic and social class.