We've established several simple branding standards for ourselves and others to use in situations relevant to our team.
For headers and other prominent text, we use ADAM.CG PRO. The original font downloadable from most other locations has some rendering flaws in some browsers, so we've made a patched version available here.
For body text on our website and elsewhere, we use Roboto Light.
We use this logo. We frequently modify the logo to fit the circumstances in which we're using it (for example, to conform to a game theme), and as such there are no strict restrictions on how our logo may be edited.