In this chapter, using the site selection example, we covered basic vector data ETL, raster analysis, and web map creation. We started with vector data, and after unifying CRS, we prepared the attribute tables. We then filtered and converted it to raster grids using batch processing. We also considered some fundamental raster concepts as we applied proximity and terrain analysis. Through map algebra, we combined these results for additive modeling site selection. We prepared these results, which required conversion to vector, styling, and labeling. Finally, we published the prepared vector output with qgis2leaf as a simple Leaflet web map application with a strong foundation for extension. In the next chapter, you will learn more about raster analysis and web application publishing with a hydrological modeling example.