book - Code Complete

Code Complete:
http://en.wikipedia.org/wiki/Code_Complete

ArcGIS mapping sites

blogs:
http://andygup.net

examples:
eyeonearth.org

storymaps.esri.com


source code:
https://github.com/esri

https://github.com/arcgis


http://gis.stackexchange.com/

android:

http://resources.arcgis.com/content/arcgis-android/about

mobile dev:

http://build.phonegap.com/

browser compatibility check:

http://caniuse.com/