Startups have different goals. Some want to stay lean and disrupt old industries. Others, like Groupon, are inventing new kinds of comapanies and hiring like ma

Startups have different goals. Some want to stay lean and disrupt old industries. Others, like Groupon, are inventing new kinds of comapanies and hiring like mad. Whatever the net-net is in terms of jobs created or killed by startups, the US is better off for having a class of creative people in the technology space trying to create new business models.