This dominant company is ahead of it's market because of three reasons, competitive pricing/marketing, support, and because they keep up with the latest trends of the communication. Dell are always looking at new ways to advertise or keep in touch with their potential customers by trendy communication methods.

The latest trend they're using is Twitter, a short message service that alerts you on what people and companies are doing. Dell has listed all their twitter accounts at http://www.dell.com/twitter for everyone to peruse.

Currently, only tech-savvy people use twitter (slowly growing out of this trend), but you will find that the majority of people who are ordering bulk lots of computers (5+) are the tech-savvy people. So to be able to target those users is definitely an asset to the point of view of Dell.