publishing your client list?

As I acquire more projects and more portfolio pieces, I continuously try to keep my website updated. It offers viewers the chance to always see some new work and it allows me to exhibit a wide variety of projects.

In my industry, it seems to be standard to publish your client list along with your portfolio. While I feel this is a little redundant, I can't help but wonder if this is a good idea. Is it fair to the client to have their design source advertised? Is it unfair to a prospective client who wants to know if you're working for their competition? Do some design firms simply use it as a bragging tool? Thoughts?