Philip Greenspun has two solid resources: - http://philip.greenspun.com/seia/ http://philip.greenspun.com/seia/? - http://philip.greenspun.com/panda/ http://ph

Philip Greenspun has two solid resources: - http://philip.greenspun.com/seia/ http://philip.greenspun.com/seia/? - http://philip.greenspun.com/panda/ http://philip.greenspun.com/panda/ I would also guide myself by looking at the top languages on Github: https://github.com/languages https://github.com/languages Best way to start though is to work on a project on your own using the LAMP stack (Linux, Apache, MySQL, PHP), that'll give you a good overview of all the different pieces involved.