Today Ross Mayfield wrote that he had stepped down from the CEO role at Socialtext to make room for someone new. Back in July Ross announced his intention to move into the Chairman and President role and seek "CEO 2.0" a person he described as someone who "will bring a strong operations background and have a mandate to grow the bottom line."CEO 2.0 is Eugene Lee, a seasoned executive with a career in technology reaching back to the mid-eighties. According to LinkedIn, Eugene has spent time at Adobe, Cisco, Banyan and Beyond Inc., a company he co-founded in 1996 and sold to Banyan in 2004.On the Socialtext blog, Eugene writes "I've spent my whole career working at the intersection of people, software, and networks. I've always had the most fun working with really smart, enthusiastic, passionate people, going after big ideas, creating and innovating new approaches, and leading teams to deliver value to customers."Perhaps these changes taking place at Socialtext are a sign that the social software industry is growing up. In any case, Ross has been (and I'm sure will continue to be) a fantastic evangelist for wikis, social software and the entire Enterprise 2.0 revolution. I wish Ross, Eugene and the Socialtext team well in this new era for Socialtext.