I have been posting some usability related materials at one of my blogs, except from the latest post follows:

UCD is short for User-centered Design, and is an important part of developing a website. Quickly defined, UCD is designing a website that meets users needs. Are you building a website for you to use, or your users? When building a website, you should design with your target audience in mind.

Read the full post here.

Post before that can be found here