diff --git a/events/admin.py b/events/admin.py
index c71f643..afa1670 100644
--- a/events/admin.py
+++ b/events/admin.py
@@ -48,12 +48,12 @@ admin.site.register(City, CityAdmin)
 
 class ProfileAdmin(admin.ModelAdmin):
     raw_id_fields = ('city',)
-    list_display = ('user', 'realname', 'city', 'web_url', 'send_notifications')
-    list_filter = ('send_notifications', 'user__last_login')
+    list_display = ('user', 'realname', 'city', 'web_url', 'send_notifications', 'do_not_track')
+    list_filter = ('send_notifications', 'do_not_track', 'user__last_login')
 admin.site.register(UserProfile, ProfileAdmin)
 
 class OrgAdmin(admin.ModelAdmin):
-    list_display = ('name', 'site')
+    list_display = ('name', 'slug', 'site')
 admin.site.register(Organization, OrgAdmin)
 
 class SponsorAdmin(admin.ModelAdmin):
@@ -86,6 +86,7 @@ admin.site.register(Place, PlaceAdmin)
 class EventAdmin(admin.ModelAdmin):
     raw_id_fields = ('place', 'created_by', 'sponsors')
     list_display = ('__str__', 'attendee_count', 'start_time', 'created_by', 'created_time')
+    list_filter = ('created_time', ('created_by',admin.RelatedOnlyFieldListFilter), ('team',admin.RelatedOnlyFieldListFilter))
     ordering = ('-start_time',)
     def attendee_count(self, event):
         return event.attendees.all().count()
diff --git a/events/models/events.py b/events/models/events.py
index b0a6223..3c9cc08 100644
--- a/events/models/events.py
+++ b/events/models/events.py
@@ -91,7 +91,7 @@ class Event(models.Model):
 
     attendees = models.ManyToManyField(UserProfile, through='Attendee', related_name="attending", blank=True)
 
-    sponsors = models.ManyToManyField('Sponsor', related_name='events')
+    sponsors = models.ManyToManyField('Sponsor', related_name='events', blank=True)
 
     @property
     def is_over(self):
diff --git a/events/models/profiles.py b/events/models/profiles.py
index d08cd74..bde610a 100644
--- a/events/models/profiles.py
+++ b/events/models/profiles.py
@@ -310,10 +310,10 @@ class Team(models.Model):
     category = models.ForeignKey('Category', on_delete=models.SET_NULL, blank=False, null=True)
     topics = models.ManyToManyField('Topic', blank=True)
 
-    sponsors = models.ManyToManyField('Sponsor', related_name='teams')
+    sponsors = models.ManyToManyField('Sponsor', related_name='teams', blank=True)
 
     is_premium = models.BooleanField(default=settings.EVENTS_TEAMS_DEFAULT_PREMIUM)
-    premium_by = models.ForeignKey(UserProfile, related_name='premium_teams', null=True, on_delete=models.SET_NULL)
+    premium_by = models.ForeignKey(UserProfile, related_name='premium_teams', null=True, blank=True, on_delete=models.SET_NULL)
     premium_started = models.DateTimeField(blank=True, null=True)
     premium_expires = models.DateTimeField(blank=True, null=True)