diff --git a/apprise/Apprise.py b/apprise/Apprise.py
index 9d6b792a..9afaa04f 100644
--- a/apprise/Apprise.py
+++ b/apprise/Apprise.py
@@ -123,7 +123,7 @@ class Apprise(object):
             self.add(servers)
 
     @staticmethod
-    def instantiate(url, asset=None, suppress_exceptions=True):
+    def instantiate(url, asset=None, tag=None, suppress_exceptions=True):
         """
         Returns the instance of a instantiated plugin based on the provided
         Server URL.  If the url fails to be parsed, then None is returned.
@@ -164,6 +164,9 @@ class Apprise(object):
             logger.error('Could not parse URL: %s' % url)
             return None
 
+        # Build a list of tags to associate with the newly added notifications
+        results['tag'] = set(parse_list(tag))
+
         if suppress_exceptions:
             try:
                 # Attempt to create an instance of our plugin using the parsed
@@ -186,10 +189,16 @@ class Apprise(object):
 
         return plugin
 
-    def add(self, servers, asset=None):
+    def add(self, servers, asset=None, tag=None):
         """
         Adds one or more server URLs into our list.
 
+        You can override the global asset if you wish by including it with the
+        server(s) that you add.
+
+        The tag allows you to associate 1 or more tag values to the server(s)
+        being added. tagging a service allows you to exclusively access them
+        when calling the notify() function.
         """
 
         # Initialize our return status
@@ -204,12 +213,13 @@ class Apprise(object):
             self.servers.append(servers)
             return True
 
+        # build our server listings
         servers = parse_list(servers)
         for _server in servers:
 
             # Instantiate ourselves an object, this function throws or
             # returns None if it fails
-            instance = Apprise.instantiate(_server, asset=asset)
+            instance = Apprise.instantiate(_server, asset=asset, tag=tag)
             if not instance:
                 return_status = False
                 logging.error(
@@ -231,13 +241,18 @@ class Apprise(object):
         self.servers[:] = []
 
     def notify(self, title, body, notify_type=NotifyType.INFO,
-               body_format=None):
+               body_format=None, tag=None):
         """
         Send a notification to all of the plugins previously loaded.
 
         If the body_format specified is NotifyFormat.MARKDOWN, it will
         be converted to HTML if the Notification type expects this.
 
+        if the tag is specified (either a string or a set/list/tuple
+        of strings), then only the notifications flagged with that
+        tagged value are notified.  By default all added services
+        are notified (tag=None)
+
         """
 
         # Initialize our return result
@@ -249,8 +264,63 @@ class Apprise(object):
         # Tracks conversions
         conversion_map = dict()
 
+        # Build our tag setup
+        #   - top level entries are treated as an 'or'
+        #   - second level (or more) entries are treated as 'and'
+        #
+        #   examples:
+        #     tag="tagA, tagB"                = tagA or tagB
+        #     tag=['tagA', 'tagB']            = tagA or tagB
+        #     tag=[('tagA', 'tagC'), 'tagB']  = (tagA and tagC) or tagB
+        #     tag=[('tagB', 'tagC')]          = tagB and tagC
+
         # Iterate over our loaded plugins
         for server in self.servers:
+
+            if tag is not None:
+
+                if isinstance(tag, (list, tuple, set)):
+                    # using the tags detected; determine if we'll allow the
+                    # notification to be sent or not
+                    matched = False
+
+                    # Every entry here will be or'ed with the next
+                    for entry in tag:
+                        if isinstance(entry, (list, tuple, set)):
+
+                            # treat these entries as though all elements found
+                            # must exist in the notification service
+                            tags = set(parse_list(entry))
+
+                            if len(tags.intersection(
+                                   server.tags)) == len(tags):
+                                # our set contains all of the entries found
+                                # in our notification server object
+                                matched = True
+                                break
+
+                        elif entry in server:
+                            # our entr(ies) match what was found in our server
+                            # object.
+                            matched = True
+                            break
+
+                        # else: keep looking
+
+                    if not matched:
+                        # We did not meet any of our and'ed criteria
+                        continue
+
+                elif tag not in server:
+                    # one or more tags were defined and they didn't match the
+                    # entry in the current service; move along...
+                    continue
+
+                # else: our content was found inside the server, so we're good
+
+            # If our code reaches here, we either did not define a tag (it was
+            # set to None), or we did define a tag and the logic above
+            # determined we need to notify the service it's associated with
             if server.notify_format not in conversion_map:
                 if body_format == NotifyFormat.MARKDOWN and \
                         server.notify_format == NotifyFormat.HTML:
diff --git a/apprise/plugins/NotifyBase.py b/apprise/plugins/NotifyBase.py
index 87b794ff..d878ea2a 100644
--- a/apprise/plugins/NotifyBase.py
+++ b/apprise/plugins/NotifyBase.py
@@ -40,6 +40,7 @@ except ImportError:
 
 from ..utils import parse_url
 from ..utils import parse_bool
+from ..utils import parse_list
 from ..utils import is_hostname
 from ..common import NOTIFY_TYPES
 from ..common import NotifyFormat
@@ -127,6 +128,9 @@ class NotifyBase(object):
     # Default Notify Format
     notify_format = NotifyFormat.TEXT
 
+    # Maintain a set of tags to associate with this specific notification
+    tags = set()
+
     # Logging
     logger = logging.getLogger(__name__)
 
@@ -172,6 +176,12 @@ class NotifyBase(object):
             # Provide override
             self.notify_format = notify_format
 
+        if 'tag' in kwargs:
+            # We want to associate some tags with our notification service.
+            # the code below gets the 'tag' argument if defined, otherwise
+            # it just falls back to whatever was already defined globally
+            self.tags = set(parse_list(kwargs.get('tag', self.tags)))
+
     def throttle(self, throttle_time=None):
         """
         A common throttle control
@@ -249,6 +259,19 @@ class NotifyBase(object):
             color_type=color_type,
         )
 
+    def __contains__(self, tags):
+        """
+        Returns true if the tag specified is associated with this notification.
+
+        tag can also be a tuple, set, and/or list
+
+        """
+        if isinstance(tags, (tuple, set, list)):
+            return bool(set(tags) & self.tags)
+
+        # return any match
+        return tags in self.tags
+
     @property
     def app_id(self):
         return self.asset.app_id
diff --git a/test/test_api.py b/test/test_api.py
index c903d76a..fa6ffada 100644
--- a/test/test_api.py
+++ b/test/test_api.py
@@ -38,6 +38,8 @@ from apprise import NotifyImageSize
 from apprise import __version__
 from apprise.Apprise import __load_matrix
 import pytest
+import requests
+import mock
 
 
 def test_apprise():
@@ -110,7 +112,7 @@ def test_apprise():
 
     class BadNotification(NotifyBase):
         def __init__(self, **kwargs):
-            super(BadNotification, self).__init__()
+            super(BadNotification, self).__init__(**kwargs)
 
             # We fail whenever we're initialized
             raise TypeError()
@@ -118,7 +120,7 @@ def test_apprise():
     class GoodNotification(NotifyBase):
         def __init__(self, **kwargs):
             super(GoodNotification, self).__init__(
-                notify_format=NotifyFormat.HTML)
+                notify_format=NotifyFormat.HTML, **kwargs)
 
         def notify(self, **kwargs):
             # Pretend everything is okay
@@ -203,9 +205,20 @@ def test_apprise():
     assert(len(a) == 0)
 
     # Instantiate a good object
-    plugin = a.instantiate('good://localhost')
+    plugin = a.instantiate('good://localhost', tag="good")
     assert(isinstance(plugin, NotifyBase))
 
+    # Test simple tagging inside of the object
+    assert("good" in plugin)
+    assert("bad" not in plugin)
+
+    # the in (__contains__ override) is based on or'ed content; so although
+    # 'bad' isn't tagged as being in the plugin, 'good' is, so the return
+    # value of this is True
+    assert(["bad", "good"] in plugin)
+    assert(set(["bad", "good"]) in plugin)
+    assert(("bad", "good") in plugin)
+
     # We an add already substatiated instances into our Apprise object
     a.add(plugin)
     assert(len(a) == 1)
@@ -225,6 +238,106 @@ def test_apprise():
     assert(len(a) == 0)
 
 
+@mock.patch('requests.get')
+@mock.patch('requests.post')
+def test_apprise_tagging(mock_post, mock_get):
+    """
+    API: Apprise() object tagging functionality
+
+    """
+
+    # A request
+    robj = mock.Mock()
+    setattr(robj, 'raw', mock.Mock())
+    # Allow raw.read() calls
+    robj.raw.read.return_value = ''
+    robj.text = ''
+    robj.content = ''
+    mock_get.return_value = robj
+    mock_post.return_value = robj
+
+    # Simulate a successful notification
+    mock_get.return_value.status_code = requests.codes.ok
+    mock_post.return_value.status_code = requests.codes.ok
+
+    # Create our object
+    a = Apprise()
+
+    # Add entry and assign it to a tag called 'awesome'
+    assert(a.add('json://localhost/path1/', tag='awesome') is True)
+
+    # Add another notification and assign it to a tag called 'awesome'
+    # and another tag called 'local'
+    assert(a.add('json://localhost/path2/', tag=['mmost', 'awesome']) is True)
+
+    # notify the awesome tag; this would notify both services behind the
+    # scenes
+    assert(a.notify(title="my title", body="my body", tag='awesome') is True)
+
+    # notify all of the tags
+    assert(a.notify(
+        title="my title", body="my body", tag=['awesome', 'mmost']) is True)
+
+    # there is nothing to notify using tags 'missing'. However we intentionally
+    # don't fail as there is value in identifying a tag that simply have
+    # nothing to notify from while the object itself contains items
+    assert(a.notify(
+        title="my title", body="my body", tag='missing') is True)
+
+    # Now to test the ability to and and/or notifications
+    a = Apprise()
+
+    # Add a tag by tuple
+    assert(a.add('json://localhost/tagA/', tag=("TagA", )) is True)
+    # Add 2 tags by string
+    assert(a.add('json://localhost/tagAB/', tag="TagA, TagB") is True)
+    # Add a tag using a set
+    assert(a.add('json://localhost/tagB/', tag=set(["TagB"])) is True)
+    # Add a tag by string (again)
+    assert(a.add('json://localhost/tagC/', tag="TagC") is True)
+    # Add 2 tags using a list
+    assert(a.add('json://localhost/tagCD/', tag=["TagC", "TagD"]) is True)
+    # Add a tag by string (again)
+    assert(a.add('json://localhost/tagD/', tag="TagD") is True)
+    # add a tag set by set (again)
+    assert(a.add('json://localhost/tagCDE/',
+           tag=set(["TagC", "TagD", "TagE"])) is True)
+
+    # Expression: TagC and TagD
+    # Matches the following only:
+    #   - json://localhost/tagCD/
+    #   - json://localhost/tagCDE/
+    assert(a.notify(
+        title="my title", body="my body", tag=[('TagC', 'TagD')]) is True)
+
+    # Expression: (TagY and TagZ) or TagX
+    # Matches nothing
+    assert(a.notify(
+        title="my title", body="my body",
+        tag=[('TagY', 'TagZ'), 'TagX']) is True)
+
+    # Expression: (TagY and TagZ) or TagA
+    # Matches the following only:
+    #   - json://localhost/tagAB/
+    assert(a.notify(
+        title="my title", body="my body",
+        tag=[('TagY', 'TagZ'), 'TagA']) is True)
+
+    # Expression: (TagE and TagD) or TagB
+    # Matches the following only:
+    #   - json://localhost/tagCDE/
+    #   - json://localhost/tagAB/
+    #   - json://localhost/tagB/
+    assert(a.notify(
+        title="my title", body="my body",
+        tag=[('TagE', 'TagD'), 'TagB']) is True)
+
+    # Garbage Entries
+    assert(a.notify(
+        title="my title", body="my body",
+        tag=[(object, ), ]) is True)
+
+
 def test_apprise_notify_formats(tmpdir):
     """
     API: Apprise() TextFormat tests