https://microsoft.github.io/autogen/docs/Examples/AutoGen-AgentChat
https://microsoft.github.io/autogen/docs/Use-Cases/agent_chat#diverse-applications-implemented-with-autogen

For example, categorize them by communication topology?

Add pointers to new notebooks:
agentchat_langchain.ipynb
oai_openai_utils.ipynb
agentchat_groupchat_RAG.ipynb