Today we published a new technical paper called “Concepts and Methods for Rule-Based Web Cartography 
.” This Technical Paper provides a quick overview of concepts and methods for Web-based cartography, with specific reference to issues of content selection and feature symbolization in the context of scale change.
One of the ways that interactive Web-based maps are different from traditional paper maps is that Web maps permit users to dynamically change map scale by interacting with a zoom tool. This creates several unique challengers for cartographers, which the paper addresses.
This is our second technical paper in a new series, and follows “Quick and Easy Web Maps with Google Fusion Tables ” published in early August.