I came across VisualCV a few years ago and was mildly impressed. It looked like a resume on steroids. I wasn't sure where this site really fit in, but over the years I've figured it out. It simply complements your online strategy. VisualCV doesn't take away from a traditional resume, or an online resume. Nor does it have any impact on the value you get out of LinkedIn, which is the 800-pound gorilla in the online professional networking space.
VisualCV provides a very nice online portfolio. The site's founders have done it since day one and they do it very well. That's why they are my pick for the site of the week.