More complex work with typography is becoming popular in web and web design is becoming more like posters and graphic design. Check out these principles of working with typography.
The main goal of Card Sorting is to improve a website’s or an application’s Information Architecture, to help designing how the information is organized and labelled.
W3Schools' statistics may not be relevant to your web site. Different sites attract different audiences. Some web sites attract developers using professional hardware, while other sites attract hobbyists using older computers. Anyway, data collected from W3Schools' log-files over many years clearly shows the long term trends.
