On Saturday I attended at Bucharest Hubb a four hour workshop about usability presented by Thomas Binder. The content was very useful and I added new tools to my online marketing arsenal.
I kindly recommend to take a look at his resources and recommandations: thomasantonbinder.com, twitter.com/tangoalphabravo, facebook.com/tangoalphabravo and tangoalphabravo.com.
pushing the humanity forward through my craft as an entrepreneur 
If I had a buck for every time I came to adrianniculescu.com! Amazing writing!