I've talked before about the importance of adding a profile picture on the site, but I have to give a hand to James, who did a great job of passive marketing. Not only do you get to see his face, which makes people feel more comfortable compared to "anonymous", but he also managed to market his company in a very non-forceful way.
9 out of 10 people who look at that picture probably have a fair understanding of what he provides and he didn't have to put up a big logo or billboard to do it. Not to say that blunt marketing doesn't work, but there is definitely something impressive with the way he markets himself.