Recycling is the key, but how to do it properly?

After the last posts we have realize how influent ICT are when talking about environmental sustanability and sustainable development. 

Here you have a great documentary, about recycling, development and abuse, that will make you think about it. 

Is it just about recycling, no matter how or where? Do we need, as a society, to be more concerned about our digital trash? What can we do to improve the situation?