diff --git a/concept.py b/concept.py
index 89c7513..97ad540 100644
--- a/concept.py
+++ b/concept.py
@@ -401,16 +401,24 @@ class IndexAttributes(object):
     def adapted(self):
         return adapted(self.context)
 
+    @Lazy
+    def adaptedIndexAttributes(self):
+        if self.adapted != self.context:
+            return component.queryAdapter(self.adapted, IIndexAttributes)
+            return IIndexAttributes(self.adapted, None)
+
     def text(self):
-        # TODO: use IIndexAttributes(self.adapted) if available
+        if self.adaptedIndexAttributes is not None:
+            return self.adaptedIndexAttributes.text()
         description = self.context.description
         if isinstance(description, I18NValue):
             description = ' '.join(description.values())
         actx = self.adapted
         indexAttrs = getattr(actx, '_textIndexAttributes', ())
+        indexValues = [getattr(actx, attr, u'???') for attr in indexAttrs]
         return ' '.join([self.title(), description] +
-                        self.creators() +
-                        [getattr(actx, attr, u'???') for attr in indexAttrs]).strip()
+                        [c for c in self.creators() if c is not None] +
+                        [v for v in indexValues if v is not None]).strip()
 
     def title(self):
         context = self.context
@@ -419,6 +427,10 @@ class IndexAttributes(object):
             title = ' '.join(title.values())
         return ' '.join((getName(context), title)).strip()
 
+    def date(self):
+        if self.adaptedIndexAttributes is not None:
+            return self.adaptedIndexAttributes.date()
+
     def creators(self):
         cr = IZopeDublinCore(self.context).creators or []
         pau = component.getUtility(IAuthentication)
diff --git a/configure.zcml b/configure.zcml
index 3f9f9b2..6763165 100644
--- a/configure.zcml
+++ b/configure.zcml
@@ -387,6 +387,11 @@
            name="text/rtf"
            factory="cybertools.text.rtf.RtfTransform" />
 
+  <adapter for="loops.interfaces.ITextDocument"
+           provides="cybertools.text.interfaces.ITextTransform"
+           name="text/html"
+           factory="cybertools.text.html.HtmlTransform" />
+
   <adapter for="loops.interfaces.IFile"
            provides="cybertools.text.interfaces.ITextTransform"
            name="application/vnd.ms-powerpoint"
diff --git a/resource.py b/resource.py
index f94bb66..1e250da 100644
--- a/resource.py
+++ b/resource.py
@@ -520,6 +520,18 @@ class IndexAttributes(object):
         self.context = context
 
     def text(self):
+        actx = adapted(self.context)
+        txt = transformToText(actx)
+        if txt is not None:
+            return txt
+        if not actx.contentType.startswith('text'):
+            return u''
+        data = actx.data
+        if type(data) != unicode:
+            data = data.decode('UTF-8')
+        return data
+
+    def xx_text(self):
         context = self.context
         ti = IType(context).typeInterface
         if ti is not None:
@@ -559,6 +571,22 @@ class IndexAttributes(object):
     def identifier(self):
         return getName(self.context)
 
+def transformToText(obj, data=None, contentType=None):
+    if data is None:
+        data = obj.data
+    if contentType is None:
+        contentType = obj.contentType
+    transform = component.queryAdapter(obj, ITextTransform, name=contentType)
+    if transform is not None:
+        #rfa = component.queryAdapter(IReadFile, obj)
+        rfa = IReadFile(obj, None)
+        if rfa is None:
+            if isinstance(data, unicode):
+                data = data.encode('UTF-8')
+            return transform(StringIO(data))
+        else:
+            return transform(rfa)
+
 
 class ResourceTypeSourceList(object):
 
@@ -577,4 +605,3 @@ class ResourceTypeSourceList(object):
 
     def __len__(self):
         return len(self.resourceTypes)
-
diff --git a/tests/setup.py b/tests/setup.py
index e749c7d..f476dd9 100644
--- a/tests/setup.py
+++ b/tests/setup.py
@@ -42,6 +42,7 @@ from cybertools.relation.interfaces import IRelationInvalidatedEvent
 from cybertools.relation.registry import IndexableRelationAdapter
 from cybertools.relation.registry import invalidateRelations, removeRelation
 from cybertools.stateful.interfaces import IStatefulIndexInfo
+from cybertools.text.html import HtmlTransform
 from cybertools.typology.interfaces import IType
 
 from loops.base import Loops
@@ -169,6 +170,7 @@ class TestSite(object):
         catalog['loops_state'] = KeywordIndex('tokens', IStatefulIndexInfo, False)
         component.provideAdapter(ConceptIndexAttributes)
         component.provideAdapter(ResourceIndexAttributes)
+        component.provideAdapter(HtmlTransform, (ITextDocument,), name='text/html')
         component.provideAdapter(StatefulResourceIndexInfo)
         component.provideHandler(handleTransition)
 
diff --git a/versioning/testsetup.py b/versioning/testsetup.py
index f3ac1e0..8225a28 100644
--- a/versioning/testsetup.py
+++ b/versioning/testsetup.py
@@ -5,11 +5,17 @@ $Id$
 """
 
 from zope import component
+from zope.annotation.attribute import AttributeAnnotations
+from zope.annotation.interfaces import IAnnotatable
 from zope.app.catalog.catalog import Catalog
 from zope.app.catalog.interfaces import ICatalog
 from zope.app.catalog.field import FieldIndex
 from zope.app.catalog.text import TextIndex
 from zope.app.container.interfaces import IObjectRemovedEvent
+from zope.app.security.interfaces import IAuthentication
+from zope.app.security.principalregistry import principalRegistry
+from zope.dublincore.annotatableadapter import ZDCAnnotatableAdapter
+from zope.dublincore.interfaces import IZopeDublinCore
 
 from cybertools.relation.tests import IntIdsStub
 from cybertools.relation.registry import RelationRegistry
@@ -20,8 +26,10 @@ from cybertools.typology.interfaces import IType
 from loops.base import Loops
 from loops import util
 from loops.interfaces import IResource, IIndexAttributes
+from loops.common import LoopsDCAdapter
 from loops.concept import Concept
 from loops.concept import IndexAttributes as ConceptIndexAttributes
+from loops.interfaces import ILoopsObject, IConcept
 from loops.resource import Resource
 from loops.resource import IndexAttributes as ResourceIndexAttributes
 from loops.knowledge.setup import SetupManager as KnowledgeSetupManager
@@ -42,7 +50,11 @@ class TestSite(object):
         relations = RelationRegistry()
         relations.setupIndexes()
         component.provideUtility(relations, IRelationRegistry)
+        component.provideUtility(principalRegistry, IAuthentication)
         component.provideAdapter(IndexableRelationAdapter)
+        component.provideAdapter(ZDCAnnotatableAdapter, (ILoopsObject,), IZopeDublinCore)
+        component.provideAdapter(AttributeAnnotations, (ILoopsObject,))
+        component.provideAdapter(LoopsDCAdapter, (IConcept,), IZopeDublinCore)
 
         component.provideAdapter(ConceptType)
         component.provideAdapter(ResourceType)