30 November 2011
Asus UX21E Ultrabook tested
Review: A step in the right direction
12 October 2011
Asus jumps on the ultrabook concept
Zenbooks will jump to the sound of one hand clapping
23 September 2011
Asus' ultrathins listed in France
Asus UX21 and UX31
06 June 2011
Asus UX21 ultra-thin should cost below US $1,000
Asus wants it cheaper than MacBook