4) A project page with links to examples of how people both in govt and outside are are using the datasets.
6) Beginner tutorials to help people get started with accessing/downloading data and using it.
7) A glossary of terms (eg, GIS, Shapefile, SQL, Geospatial...)
9) An API option to access data.
10) Some basic data viz views for each dataset so that users can get a quick sense of the characteristics of the data.