diff --git a/pillar/application/__init__.py b/pillar/application/__init__.py
index 4b549a17..37695791 100644
--- a/pillar/application/__init__.py
+++ b/pillar/application/__init__.py
@@ -349,6 +349,7 @@ def post_GET_user(request, payload):
 app.on_post_GET_users += post_GET_user
 
 from modules.file_storage import process_file
+from modules.file_storage import delete_file
 
 def post_POST_files(request, payload):
     """After an file object has been created, we do the necessary processing
@@ -362,15 +363,15 @@ from utils.cdn import hash_file_path
 from application.utils.gcs import GoogleCloudStorageBucket
 # Hook to check the backend of a file resource, to build an appropriate link
 # that can be used by the client to retrieve the actual file.
-def generate_link(backend, path, project_id=None):
+def generate_link(backend, file_path, project_id=None):
     if backend == 'gcs':
         storage = GoogleCloudStorageBucket(project_id)
-        blob = storage.Get(path)
+        blob = storage.Get(file_path)
         link = blob['signed_url']
     elif backend == 'pillar':
-        link = url_for('file_storage.index', file_name=path, _external=True)
+        link = url_for('file_storage.index', file_name=file_path, _external=True)
     elif backend == 'cdnsun':
-        link = hash_file_path(path, None)
+        link = hash_file_path(file_path, None)
     else:
         link = None
     return link
@@ -378,18 +379,24 @@ def generate_link(backend, path, project_id=None):
 def before_returning_file(response):
     # TODO: add project id to all files
     project_id = None if 'project' not in response else str(response['project'])
-    response['link'] = generate_link(response['backend'], response['path'], project_id)
+    response['link'] = generate_link(response['backend'], response['file_path'], project_id)
 
 def before_returning_files(response):
     for item in response['_items']:
         # TODO: add project id to all files
         project_id = None if 'project' not in item else str(item['project'])
-        item['link'] = generate_link(item['backend'], item['path'], project_id)
+        item['link'] = generate_link(item['backend'], item['file_path'], project_id)
 
 
 app.on_fetched_item_files += before_returning_file
 app.on_fetched_resource_files += before_returning_files
 
+
+def before_deleting_file(item):
+    delete_file(item)
+
+app.on_delete_item_files += before_deleting_file
+
 # The file_storage module needs app to be defined
 from modules.file_storage import file_storage
 #from modules.file_storage.serve import *
diff --git a/pillar/application/modules/file_storage/__init__.py b/pillar/application/modules/file_storage/__init__.py
index 84d5d067..a380c48f 100644
--- a/pillar/application/modules/file_storage/__init__.py
+++ b/pillar/application/modules/file_storage/__init__.py
@@ -51,7 +51,7 @@ def build_thumbnails(file_path=None, file_id=None):
     files_collection = app.data.driver.db['files']
     if file_path:
         # Search file with backend "pillar" and path=file_path
-        file_ = files_collection.find({"path": "{0}".format(file_path)})
+        file_ = files_collection.find({"file_path": "{0}".format(file_path)})
         file_ = file_[0]
 
     if file_id:
@@ -72,7 +72,7 @@ def build_thumbnails(file_path=None, file_id=None):
         if thumbnail.get('exists'):
             # If a thumbnail was already made, we just continue
             continue
-        basename = os.path.basename(thumbnail['path'])
+        basename = os.path.basename(thumbnail['file_path'])
         root, ext = os.path.splitext(basename)
         file_object = dict(
             name=root,
@@ -88,7 +88,7 @@ def build_thumbnails(file_path=None, file_id=None):
             md5=thumbnail['md5'],
             filename=basename,
             backend=file_['backend'],
-            path=basename,
+            file_path=basename,
             project=file_['project'])
         # Commit to database
         r = post_item('files', file_object)
@@ -131,7 +131,7 @@ def process_file(src_file):
     content_type = src_file['content_type'].split('/')
     src_file['format'] = content_type[1]
     mime_type = content_type[0]
-    src_file['path'] = src_file['name']
+    src_file['file_path'] = src_file['name']
 
     if mime_type == 'image':
         from PIL import Image
@@ -183,7 +183,7 @@ def process_file(src_file):
                 md5="", # Available after encode
                 filename=os.path.split(filename)[1],
                 backend=src_file['backend'],
-                path=filename)
+                file_path=filename)
 
             file_object_id = files_collection.save(file_object)
             # Append the ObjectId to the new list
@@ -226,3 +226,27 @@ def process_file(src_file):
     file_asset = files_collection.find_and_modify(
         {'_id': src_file['_id']},
         src_file)
+
+
+def delete_file(file_item):
+    def process_file_delete(file_item):
+        """Given a file item, delete the actual file from the storage backend.
+        This function can be probably made self-calling."""
+        if file_item['backend'] == 'gcs':
+            storage = GoogleCloudStorageBucket(str(file_item['project']))
+            storage.Delete(file_item['file_path'])
+            return True
+        elif backend == 'pillar':
+            pass
+        elif backend == 'cdnsun':
+            pass
+        else:
+            pass
+    files_collection = app.data.driver.db['files']
+    # Collect children (variations) of the original file
+    children = files_collection.find({'parent': file_item['_id']})
+    for child in children:
+        process_file_delete(child)
+    # Finally remove the original file
+    process_file_delete(file_item)
+
diff --git a/pillar/application/utils/gcs.py b/pillar/application/utils/gcs.py
index 615587b5..eef1a113 100644
--- a/pillar/application/utils/gcs.py
+++ b/pillar/application/utils/gcs.py
@@ -2,6 +2,7 @@ import os
 import time
 import datetime
 from gcloud.storage.client import Client
+from gcloud.exceptions import NotFound
 from oauth2client.client import SignedJwtAssertionCredentials
 from application import app
 
@@ -101,7 +102,7 @@ class GoogleCloudStorageBucket(object):
             signed_url=blob.generate_signed_url(expiration, credentials=self.credentials_p12))
 
 
-    def Get(self, path):
+    def Get(self, path, to_dict=True):
         """Get selected file info if the path matches.
 
         :type path: string
@@ -110,7 +111,10 @@ class GoogleCloudStorageBucket(object):
         path = os.path.join(self.subdir, path)
         blob = self.bucket.blob(path)
         if blob.exists():
-            return self.blob_to_dict(blob)
+            if to_dict:
+                return self.blob_to_dict(blob)
+            else:
+                return blob
         else:
             return None
 
@@ -125,3 +129,15 @@ class GoogleCloudStorageBucket(object):
         blob.upload_from_filename(full_path)
         return blob
         # return self.blob_to_dict(blob) # Has issues with threading
+
+
+    def Delete(self, path):
+        """Delete blob (when removing an asset or replacing a preview)"""
+
+        # We want to get the actual blob to delete
+        blob = self.Get(path, to_dict=False)
+        try:
+            blob.delete()
+            return True
+        except NotFound:
+            return None
diff --git a/pillar/application/utils/imaging.py b/pillar/application/utils/imaging.py
index fc1a2968..cdd76908 100644
--- a/pillar/application/utils/imaging.py
+++ b/pillar/application/utils/imaging.py
@@ -43,7 +43,7 @@ def generate_local_thumbnails(src, return_image_stats=False):
             format = im.format.lower()
             # Get format
             thumbnails[size] = dict(
-                path=dst, # Full path, to be processed before storage
+                file_path=dst, # Full path, to be processed before storage
                 length=length,
                 width=width,
                 height=height,
diff --git a/pillar/manage.py b/pillar/manage.py
index e164112a..adc67f63 100644
--- a/pillar/manage.py
+++ b/pillar/manage.py
@@ -623,7 +623,6 @@ def populate_node_types(old_ids={}):
                 'methods': ['GET', 'PUT', 'POST']
             }],
             'users': [],
-            'world': ['GET']
         }
     }
 
@@ -664,7 +663,6 @@ def populate_node_types(old_ids={}):
                 'methods': ['GET', 'PUT', 'POST']
             }],
             'users': [],
-            'world': ['GET']
         }
     }
 
diff --git a/pillar/settings.py b/pillar/settings.py
index 1c37ed20..a0a9abb8 100644
--- a/pillar/settings.py
+++ b/pillar/settings.py
@@ -392,7 +392,7 @@ files_schema = {
         'required': True,
         'allowed': ["attract-web", "pillar", "cdnsun", "gcs"]
     },
-    'path': {
+    'file_path': {
         'type': 'string',
         #'required': True,
         'unique': True,