I think it is important to go as well prepared as you can be to show a high level of professionalism. If a fellow artist is taking his/her time to review your work, or an editor takes the time to grab your card (a must-have!!!) and then looks at your web site, this one needs to be ready with your newest and best work. As I see it, every little thing you do counts and in the end it will pay dividends.
So in an effort to be fully prepared, I redesigned my web site last week. It was a lot of work! But thank goodness I have not only a design background, but a web design background so I was able to do it without assistance. I am very happy with it, and I invite you to visit it and click around. You'd probably seen most of my work, since I have used the Illustration Friday posts to build my portfolio. In any case, I hope you like it as much as I do!
I also updated my sample tearsheet which includes samples of my work and contact information in PDF format. Tearsheets are used as portfolio samples that Art Directors keep on-hand and usually leaf through when selecting an illustrator. Illustrators mail them to publishers but it is also common practice to email them as attachments or have them on their web site.
I have added links to both my website and my tearsheet on the left column.