I got a lot out of PSFK’s SF conference last year, and it came as no surprise that their Good Brands Report for ’09 is just as worthwhile. In looking at criteria including experimentation, environment and going “beyond the 30 second spot,” the trends publisher identified Zipcar, Good Magazine, and Virgin as the brands doing the most notable work since this time last year. The best advice (…beyond Twitter being a company to watch–oh, that) is the Good Mag lesson for business: “Set the agenda and let your customers spread the conversation.”