diff --git a/bookwyrm/activitypub/base_activity.py b/bookwyrm/activitypub/base_activity.py
index fcc4eccde..57244484a 100644
--- a/bookwyrm/activitypub/base_activity.py
+++ b/bookwyrm/activitypub/base_activity.py
@@ -300,6 +300,7 @@ class Link(ActivityObject):
     name: str = None
     mediaType: str = None
     id: str = None
+    attributedTo: str = None
     type: str = "Link"
 
     def serialize(self, **kwargs):
diff --git a/bookwyrm/migrations/0126_filelink_link_linkdomain.py b/bookwyrm/migrations/0126_filelink_link_linkdomain.py
index 98d71cc26..7e5186b6d 100644
--- a/bookwyrm/migrations/0126_filelink_link_linkdomain.py
+++ b/bookwyrm/migrations/0126_filelink_link_linkdomain.py
@@ -1,7 +1,8 @@
-# Generated by Django 3.2.10 on 2022-01-09 22:10
+# Generated by Django 3.2.10 on 2022-01-10 21:20
 
 import bookwyrm.models.activitypub_mixin
 import bookwyrm.models.fields
+from django.conf import settings
 from django.db import migrations, models
 import django.db.models.deletion
 
@@ -49,6 +50,15 @@ class Migration(migrations.Migration):
                     ),
                 ),
                 ("name", models.CharField(max_length=100)),
+                (
+                    "reported_by",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
             ],
             options={
                 "abstract": False,
@@ -77,6 +87,14 @@ class Migration(migrations.Migration):
                     ),
                 ),
                 ("url", bookwyrm.models.fields.URLField(max_length=255)),
+                (
+                    "added_by",
+                    bookwyrm.models.fields.ForeignKey(
+                        null=True,
+                        on_delete=django.db.models.deletion.SET_NULL,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
                 (
                     "domain",
                     models.ForeignKey(
diff --git a/bookwyrm/models/link.py b/bookwyrm/models/link.py
index 6e02c8d39..22241dddf 100644
--- a/bookwyrm/models/link.py
+++ b/bookwyrm/models/link.py
@@ -22,6 +22,9 @@ class Link(ActivitypubMixin, BookWyrmModel):
         blank=True,
         related_name="links",
     )
+    added_by = fields.ForeignKey(
+        "User", on_delete=models.SET_NULL, null=True, activitypub_field="attributedTo"
+    )
 
     activity_serializer = activitypub.Link
     reverse_unfurl = True
@@ -66,6 +69,9 @@ class LinkDomain(BookWyrmModel):
     domain = models.CharField(max_length=255, unique=True)
     status = models.CharField(max_length=50, choices=StatusChoices, default="pending")
     name = models.CharField(max_length=100)
+    reported_by = models.ForeignKey(
+        "User", blank=True, null=True, on_delete=models.SET_NULL
+    )
 
     def raise_not_editable(self, viewer):
         if viewer.has_perm("moderate_post"):