What is the relationship between Xiaohongshu and social media in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

In addition, the major social media platforms for us to provide advertising service have extended even further beyond just Weibo and Bilibili, with Xiaohongshu and the Douyin now being added to the roster.

Answer: industry