You see portfolio sites all over the web from web designers showcasing the sites that they've designed. And now and then you see web developers posting a portfolio including a few sites they've managed the HTML coding for. But you never see a portfolio of a developer showing the site architecture that they've rocked.
Here's a weird paradox: I want to showcase the work I've done for clients. The work I do is primarily writing site-specific code to enable a certain unique feature on a site, or assembling the parts to produce that feature. But often I can't realistically use a screenshot of the site to characterize that work, since the screenshot is of the graphic design, which is something I had nothing to do with.