diff --git a/socials_util/__init__.py b/socials_util/__init__.py
index 25decff..d79d692 100644
--- a/socials_util/__init__.py
+++ b/socials_util/__init__.py
@@ -37,6 +37,7 @@ class SocialSiteId(aenum.Enum):
     EMAIL = 16
     JSON_LD = 17 # Similar to PAGE_WATCH, but focused on embedded microdata
     SUBSTACK = 18
+    MEDIUM_BLOG = 3899
     ETSY_SHOP = 19
     KO_FI = 20
     BEHANCE_PAGE = 21
@@ -146,6 +147,21 @@ WIKIDATA_PROPERTIES = {
     SocialSiteId.STEAM_APPLICATION_ID: WikidataInfo(1733, None),
     SocialSiteId.GITHUB_REPOSITORY: WikidataInfo(None, 364),
     SocialSiteId.LINKEDIN_PERSONAL_PROFILE: WikidataInfo(6634, None),
+    SocialSiteId.MEDIUM_BLOG : WikidataInfo(3899, None),
+    SocialSiteId.SUBSTACK : WikidataInfo(12007, None),
+
+    SocialSiteId.INPRNT_PAGE: WikidataInfo(None, None),
+    SocialSiteId.ETSY_SHOP: WikidataInfo(None, 1353939),
+    SocialSiteId.KO_FI: WikidataInfo(None, 77949925),
+    SocialSiteId.BEHANCE_PAGE: WikidataInfo(None, 4880667),
+    SocialSiteId.PLURK: WikidataInfo(None, 32111),
+
+    # Weird internal
+    SocialSiteId.LINK_COLLECTION_PAGE: WikidataInfo(None, None),
+    SocialSiteId.PAGE_WATCH: WikidataInfo(None, None),
+    SocialSiteId.JSON_LD: WikidataInfo(None, None),
+    SocialSiteId.FIREFOX_PROFILE_BOOKMARKS: WikidataInfo(None, None),
+    SocialSiteId.FALKON_PROFILE_BOOKMARKS: WikidataInfo(None, None),
 }
 
 def re_social_subdomain(main_domain):
@@ -270,6 +286,10 @@ REGEXES = [
     # Substack
     (SUBSTACK_PREFIX_URL, SocialSiteId.SUBSTACK),
 
+    # Medium
+    (re_social_path_adv('medium.com', RE_ID), SocialSiteId.MEDIUM_BLOG),
+    (re_social_subdomain('medium.com'), SocialSiteId.MEDIUM_BLOG),
+
     # Etsy shop
     (ETSY_SHOP_URL, SocialSiteId.ETSY_SHOP),
 
diff --git a/test/test_consistency.py b/test/test_consistency.py
new file mode 100644
index 0000000..d1f6fe2
--- /dev/null
+++ b/test/test_consistency.py
@@ -0,0 +1,9 @@
+
+import socials_util
+import pytest
+
+@pytest.mark.parametrize('social_site_id', list(socials_util.SocialSiteId))
+def test_consistency(social_site_id):
+    assert social_site_id in socials_util.WIKIDATA_PROPERTIES
+
+