Inc.com launched its Inc 500 list this week, which ranks the fastest growing privately owned companies in the US. For anyone starting their own business the list should prove inspiring. For example, I’ve been looking at the Advertising and Marketing companies on the Inc500. Check out the top entry (and 5th in the overall list) IntegraClick. Founded by John Lemp in Sarasota Florida in 2002, it achieved 12,654.4% three-year growth, and has revenues of $96.4 million, with 55 employees. Next among the advertising and marketing firms, and 8th in the overall ranking, is One Technologies, founded in 2000, with 9,946.4% three-year growth and revenues of $50.7m. It’s good to be reminded that it’s still possible to be ambitious and achieve outrageously high growth despite the economic turbulence of the last year.