I keep losing this really handy xsl for displaying the raw search result XML in SharePoint. Blogging it for future reference :).

<xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
 <xsl:template match="/">
  <xmp><xsl:copy-of select="*"/></xmp>
 </xsl:template>
</xsl:stylesheet>