The Instagage button allows you to get paid to communicate with your visitors using built in time tracking and automated billing.
This Buddypress plugin allows each user to create his portfolio on your website.
Project Bubble in your WordPress admin and on your website.
GitHub Grubber displays public GitHub repositories in WordPress. More information can be found at: http://whoisowenbyrne.com/github-grubber
G-Projects is a wordpress plugin tested on wordpress 3.0.1 that creates a simple portfolio for developers/designers.
With this Plugin you can show a nice Overview of all of your projects.
List your projects. Let your users see what you are working on.
List public repositories on GitHub for a specific user.