diff --git a/src/fr/devinsy/util/rss/RSSCache.java b/src/fr/devinsy/util/rss/RSSCache.java
new file mode 100644
index 0000000..cd6ef51
--- /dev/null
+++ b/src/fr/devinsy/util/rss/RSSCache.java
@@ -0,0 +1,173 @@
+package fr.devinsy.util.rss;
+
+import java.util.HashMap;
+import java.util.Locale;
+
+/**
+ * @author christian.momon@devinsy.fr, 2013, copyright.
+ * 
+ *         This file is free software under the terms of the GNU Library General
+ *         Public License as published by the Free Software Foundation version 3
+ *         or any later version.
+ */
+public class RSSCache
+{
+	private static RSSCache instance = new RSSCache();
+	private HashMap<String, String> cache;
+
+	/**
+	 * 
+	 */
+	private RSSCache()
+	{
+		this.cache = new HashMap<String, String>();
+	}
+
+	/**
+	 * 
+	 * @param key
+	 * @param locale
+	 * @return
+	 */
+	public String get(final String name)
+	{
+		return get(name, Locale.ROOT);
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param locale
+	 * @return
+	 */
+	public String get(final String name, final Locale locale)
+	{
+		String result;
+
+		if (name == null)
+		{
+			throw new NullPointerException("name is null.");
+		}
+		else if (locale == null)
+		{
+			result = get(name, Locale.ROOT);
+		}
+		else
+		{
+			result = this.cache.get(key(name, locale));
+
+			if (result == null)
+			{
+				result = this.cache.get(name);
+			}
+		}
+
+		return result;
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param locale
+	 * @return
+	 */
+	private String key(final String name, final Locale locale)
+	{
+		String result;
+
+		if (locale.getLanguage().length() == 0)
+		{
+			result = name;
+		}
+		else
+		{
+			result = name + "_" + locale.getLanguage();
+		}
+
+		//
+		return result;
+	}
+
+	/**
+	 * 
+	 * @param key
+	 * @param locale
+	 * @param rss
+	 */
+	public void put(final String name, final Locale locale, final String rss)
+	{
+		if (name == null)
+		{
+			throw new NullPointerException("name is null.");
+		}
+		else if (locale == null)
+		{
+			put(name, Locale.ROOT, rss);
+		}
+		else
+		{
+			this.cache.put(key(name, locale), rss);
+		}
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param locale
+	 * @param rss
+	 */
+	public void put(final String name, final String rss)
+	{
+		put(name, Locale.ROOT, rss);
+	}
+
+	/**
+	 * 
+	 * @param name
+	 */
+	public void remove(final String name)
+	{
+		remove(name, Locale.ROOT);
+	}
+
+	/**
+	 * 
+	 * @param name
+	 */
+	public void remove(final String name, final Locale locale)
+	{
+		if (name == null)
+		{
+			throw new NullPointerException("key is null.");
+		}
+		else
+		{
+			this.cache.remove(name + "-" + locale.getLanguage());
+		}
+	}
+
+	/**
+	 * 
+	 * @param key
+	 */
+	public void setOudated(final String name)
+	{
+		for (String subkey : this.cache.keySet())
+		{
+			if (subkey.startsWith(name))
+			{
+				this.cache.remove(subkey);
+			}
+		}
+	}
+
+	/**
+	 * 
+	 * @return
+	 */
+	public static RSSCache instance()
+	{
+		return instance;
+	}
+
+}
diff --git a/src/fr/devinsy/util/rss/RSSElement.java b/src/fr/devinsy/util/rss/RSSElement.java
new file mode 100644
index 0000000..7b8b73f
--- /dev/null
+++ b/src/fr/devinsy/util/rss/RSSElement.java
@@ -0,0 +1,139 @@
+package fr.devinsy.util.rss;
+
+import org.joda.time.DateTime;
+
+/**
+ * @author christian.momon@devinsy.fr, 2013, copyright.
+ * 
+ *         This file is free software under the terms of the GNU Library General
+ *         Public License as published by the Free Software Foundation version 3
+ *         or any later version.
+ */
+public class RSSElement
+{
+	public static final String DATE_PATTERN = "dd MMM YYYY hh:mm:ss Z";
+	private String name;
+	private String value;
+	private String[] attributes;
+
+	/**
+	 * 
+	 * @param name
+	 * @param value
+	 */
+	public RSSElement(final String name, final DateTime value)
+	{
+		setName(name);
+		if (value == null)
+		{
+			this.value = null;
+		}
+		else
+		{
+			this.value = value.toString(DATE_PATTERN);
+		}
+		this.attributes = null;
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param value
+	 */
+	public RSSElement(final String name, final long value)
+	{
+		setName(name);
+		this.value = String.valueOf(value);
+		this.attributes = null;
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param value
+	 */
+	public RSSElement(final String name, final long value, final String... attributes)
+	{
+		setName(name);
+		this.value = String.valueOf(value);
+		this.attributes = attributes;
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param value
+	 */
+	public RSSElement(final String name, final String value)
+	{
+		setName(name);
+		this.value = value;
+		this.attributes = null;
+	}
+
+	/**
+	 * 
+	 * @param name
+	 * @param value
+	 */
+	public RSSElement(final String name, final String value, final String... attributes)
+	{
+		setName(name);
+		this.value = value;
+		this.attributes = attributes;
+	}
+
+	public String[] getAttributes()
+	{
+		return attributes;
+	}
+
+	/**
+	 * 
+	 * @return
+	 */
+	public String getName()
+	{
+		return name;
+	}
+
+	/**
+	 * 
+	 * @return
+	 */
+	public String getValue()
+	{
+		return value;
+	}
+
+	public void setAttributes(final String[] attributes)
+	{
+		this.attributes = attributes;
+	}
+
+	/**
+	 * 
+	 * @param name
+	 */
+	public void setName(final String name)
+	{
+		if (name == null)
+		{
+			throw new NullPointerException("name is null");
+		}
+		else
+		{
+			this.name = name;
+		}
+	}
+
+	/**
+	 * 
+	 * @param value
+	 */
+	public void setValue(final String value)
+	{
+		this.value = value;
+	}
+
+}
diff --git a/src/fr/devinsy/util/rss/RSSWriter.java b/src/fr/devinsy/util/rss/RSSWriter.java
new file mode 100644
index 0000000..8c60ffb
--- /dev/null
+++ b/src/fr/devinsy/util/rss/RSSWriter.java
@@ -0,0 +1,157 @@
+package fr.devinsy.util.rss;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+
+import fr.devinsy.util.xml.XMLWriter;
+
+/**
+ * @author christian.momon@devinsy.fr, 2013, copyright.
+ * 
+ *         This file is free software under the terms of the GNU Library General
+ *         Public License as published by the Free Software Foundation version 3
+ *         or any later version.
+ */
+public class RSSWriter
+{
+	private XMLWriter out;
+
+	/**
+	 * 
+	 * @param file
+	 * @throws FileNotFoundException
+	 * @throws UnsupportedEncodingException
+	 */
+	public RSSWriter(final File file) throws UnsupportedEncodingException, FileNotFoundException
+	{
+		this.out = new XMLWriter(file);
+		writeRSSHeader();
+	}
+
+	/**
+	 * 
+	 * @param target
+	 * @throws UnsupportedEncodingException
+	 */
+	public RSSWriter(final OutputStream target) throws UnsupportedEncodingException
+	{
+		this.out = new XMLWriter(target);
+		writeRSSHeader();
+	}
+
+	/**
+	 * 
+	 * @param target
+	 * @throws UnsupportedEncodingException
+	 */
+	public RSSWriter(final Writer target) throws UnsupportedEncodingException
+	{
+		this.out = new XMLWriter(target);
+		writeRSSHeader();
+	}
+
+	/**
+	 * 
+	 */
+	public void close() throws IOException
+	{
+		if (this.out != null)
+		{
+			this.out.writeEndTag("channel");
+			this.out.writeEndTag("rss");
+			this.out.close();
+		}
+	}
+
+	/**
+	 * 
+	 */
+	public void flush() throws IOException
+	{
+		if (this.out != null)
+		{
+			this.out.flush();
+		}
+	}
+
+	/**
+	 * 
+	 */
+	public void writeChannel(final String title, final String link, final String description, final RSSElement... elements)
+	{
+		//
+		this.out.writeStartTag("channel");
+
+		//
+		this.out.writeTag("title", title);
+		this.out.writeTag("link", link);
+		this.out.writeTag("description", description);
+
+		//
+		if ((elements != null) && (elements.length > 0))
+		{
+			for (RSSElement element : elements)
+			{
+				out.writeTag(element.getName(), element.getValue(), element.getAttributes());
+			}
+		}
+	}
+
+	/**
+	 * 
+	 * @param comment
+	 */
+	public void writeComment(final String comment)
+	{
+		this.out.writeComment(comment);
+	}
+
+	/**
+	 * 
+	 */
+	public void writeItem(final String title, final String link, final String description, final RSSElement... elements)
+	{
+		//
+		this.out.writeStartTag("item");
+
+		//
+		this.out.writeTag("title", title);
+		if (link != null)
+		{
+			this.out.writeTag("link", link);
+		}
+		if (description == null)
+		{
+			this.out.writeTag("description", "n/a");
+		}
+		else
+		{
+			this.out.writeTag("description", description);
+		}
+
+		//
+		if ((elements != null) && (elements.length > 0))
+		{
+			for (RSSElement element : elements)
+			{
+				out.writeTag(element.getName(), element.getValue(), element.getAttributes());
+			}
+		}
+
+		//
+		this.out.writeEndTag("item");
+	}
+
+	/**
+	 * 
+	 */
+	private void writeRSSHeader()
+	{
+		this.out.writeXMLHeader();
+		this.out.writeStartTag("rss", "version", "2.0");
+	}
+}