looking for the topic links 2.0

It seems like you're referring to "Topic Links" or "Topic Maps," often related to organizing and managing knowledge or information in various fields. However, "Topic Links 2.0" isn't a widely recognized term. Could you please clarify what specific context or application you're referring to? For example, are you talking about a technological framework, a method for organizing information, or something else? This will help me provide a more accurate and relevant response.