mtop/speciesgeocoder/wiki Tutorial for creating polygons in QGIS gislounge.com Shapefile Viewers docs.qgis.org/2.8 Working with Vector Data docs.qgis.org/2.8 Working with GPS Data docs.qgis.org/2.8 Importing GPS data plugins.qgis.org Plugin: Digitizing Tools bstroebl/DigitizingTools/wiki Digitizing Tools Usage qgistutorials.com QGIS Tutorials and Tips docs.qgis.org/2.8 QGIS Training Manual