A few blog posts on projects that I worked on while I was at the BBC:

BBC iPlayer Radio app
Reinventing Radio 1 and 1Xtra online
BBC TV Homepage
Desert Island Discs relaunch
A History of the World
BBC Connected Studio

Blog posts of other work that might be of interest:

Paper prototyping
User Experience and its role in branding
Challenge Mapping
Berlin Music Week
Red Light Radio
Guerilla research and rapid prototyping
Making a difference with the 1% club
Drawing a floorplan – a research exercise

For an overview of my background take a look at yasser.co.uk