[1] Like Button - Facebook開発者 (2010-06-16 11:29:09 +09:00 版) http://developers.facebook.com/docs/reference/plugins/like

[2] Platform Evolution: Facebook Social Plugins to Be Discontinued February 2026, 2026-01-28T01:40:37.000Z https://developers.facebook.com/blog/post/2025/11/10/platform-evolution-facebook-social-plugins-to-be-discontinued-february-2026/