Moments of Truth is a Journey mapping term, and can occur outside of the digital experience. An example being opening the front door of a shop and walking in for the first very time.
On the subject of usability and user experience, the case of Skype. A brief analysis using the 5 usability building blocks: easy to use, structure, aesthetic, intuitiveness, and functionality.
Short Presentation on Personalisation, Behavioural Targeting and Online Marketing Optimisation
How to manipulate TGI statements to define your audience