Web design for a social networking website

We are looking for a designer for a social networking website. At this time we received proposals from 3 other designers but would like to review design concepts from other designers as well. In this phase of the project all we want is a proposal / draft concept drawings. If you are selected as the designer we will hire you for the complete web design project, including layout, buttons, logo, etc. Here are more details about what we are looking for: [login to view URL] Please submit a simple concept drawing, as well as links to previous work, along with your bid.