The User Experience is how a person interacts with your software, application or service. It  includes the various navigational steps they need to go through in order to derive some value from their usage.

Q3 – 2013

• In this Interview with Andy Budd he says there is a relationship between design and MVP. This is a must read, let alone for The Minimum Viable Pizza analogy.
• Do you Experience Rot?
• Is Your Website Guiding Customers To Lowest Effort Resolutions Paths?

 2012

• Laura Klein describes five fast/cheap/easy approaches to user research and usability testing.

2011 & prior

Jacob Gube offers some basics on modern User Experience design principles, in What is User Experience Design? Overview, Tools and Resources.