diff --git a/docs/settings.txt b/docs/settings.txt
index a79a6a2..6bf4c19 100644
--- a/docs/settings.txt
+++ b/docs/settings.txt
@@ -62,12 +62,97 @@ COMPRESS_CSS_FILTERS
 
 A list of filters that will be applied to CSS.
 
+Possible options are:
+
+``compressor.filters.css_default.CssAbsoluteFilter``
+""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+A filter that normalizes the URLs used in ``url()`` CSS statements.
+
+``compressor.filters.csstidy.CSSTidyFilter``
+""""""""""""""""""""""""""""""""""""""""""""
+
+A filter that passes the CSS content to the CSSTidy_ tool.
+
+- ``COMPRESS_CSSTIDY_BINARY`` -- The CSSTidy binary filesystem path.
+
+- ``COMPRESS_CSSTIDY_ARGUMENTS`` -- The arguments passed to CSSTidy.
+
+``compressor.filters.datauri.DataUriFilter``
+""""""""""""""""""""""""""""""""""""""""""""
+
+A filter for embedding media as `data: URIs`_ in the CSS.
+
+- ``COMPRESS_DATA_URI_MIN_SIZE`` -- Only files that are smaller than
+  this value will be embedded. In bytes.
+
+``compressor.filters.yui.YUICSSFilter``
+"""""""""""""""""""""""""""""""""""""""
+
+A filter that passes the CSS content to the `YUI compressor`_.
+
+- ``COMPRESS_YUI_BINARY`` -- The YUI compressor filesystem path.
+
+- ``COMPRESS_YUI_CSS_ARGUMENTS``-- The arguments passed to the compressor.
+
+``compressor.filters.cssmin.CSSMinFilter``
+""""""""""""""""""""""""""""""""""""""""""
+
+A filter that uses Zachary Voase's Python port of the YUI CSS compression
+algorithm cssmin_.
+
+``compressor.filters.compass.CompassFilter``
+""""""""""""""""""""""""""""""""""""""""""""
+
+A filter that runs Compass_'s compile command. **(BETA)**
+
+- ``COMPRESS_COMPASS_BINARY`` -- The compass CLI tool filesystem path.
+
+- ``COMPRESS_COMPASS_ARGUMENTS`` -- The arguments passed to the compass CLI tool.
+
+- ``COMPRESS_COMPASS_PLUGINS`` -- A list of plugins names that are passed to
+  compass' require option e.g. ``['my_plugin']`` leads to passing
+  ``--require my_plugin``.
+
+.. _CSSTidy: http://csstidy.sourceforge.net/
+.. _`data: URIs`: http://en.wikipedia.org/wiki/Data_URI_scheme
+.. _cssmin: http://pypi.python.org/pypi/cssmin/
+.. _Compass: http://compass-style.org/
+
+
 COMPRESS_JS_FILTERS
 ^^^^^^^^^^^^^^^^^^^
 
 :Default: ``['compressor.filters.jsmin.JSMinFilter']``
 
-A list of filters that will be applied to javascript.
+A list of filters that will be applied to javascript. Possible options are:
+
+``compressor.filters.jsmin.JSMinFilter``
+"""""""""""""""""""""""""""""""""""""""""
+
+A filter that uses the jsmin implementation rJSmin_ to compess JavaScript code.
+
+``compressor.filters.closure.ClosureCompilerFilter``
+""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+A filter that uses `Google Closure compiler`_.
+
+- ``COMPRESS_CLOSURE_COMPILER_BINARY`` -- The Closure compiler filesystem path.
+
+- ``COMPRESS_CLOSURE_COMPILER_ARGUMENTS`` -- The arguments passed to the compiler.
+
+``compressor.filters.yui.YUIJSFilter``
+""""""""""""""""""""""""""""""""""""""
+
+A filter that passes the JavaScript code to the `YUI compressor`_.
+
+- ``COMPRESS_YUI_BINARY`` -- The YUI compressor filesystem path.
+
+- ``COMPRESS_YUI_JS_ARGUMENTS`` -- The arguments passed to the compressor.
+
+.. _rJSmin: http://opensource.perlig.de/rjsmin/
+.. _`Google Closure compiler`: http://code.google.com/closure/compiler/
+.. _`YUI compressor`: http://developer.yahoo.com/yui/compressor/
 
 .. _compress_precompilers: