Here's the exceptionally flexible Rik Riel breakdancing in both realities -- his material self in Brooklyn, his avatar in Justice Commons. Rik blogs about both identities on his own blog, Rikomatic, and keeps track of non-profit activity in virtual worlds at Betterverse.org. (RSS both soon, son.) Unsurprisingly, you can often find Rik at non-profit/social good events in Second Life. Somewhat more surprisingly, you can sometimes find Rik in New York's Central Park, getting funky center stage for the female James Brown.