How to do X in QGIS
A great new initiative has been started on QGIS wiki: “How to do X in QGIS” aims at providing step-by-step tutorials for various tasks based on the latest versions of QGIS. This new knowledge base is meant to complement the existing documentation and to replace some of the outdated tutorials available all over the web.
Feel free to contribute tutorials or tutorial ideas, it’s a wiki!