Google Sitemaps
For the power house, I'm now using a variation of templates from Anders Jacobsen and Cameron Bulock.
<?xml version="1.0" encoding="UTF-8"?> <urlset xmlns="http://www.google.com/schemas/sitemap/0.84">
<url>
<loc><$MTBlogURL encode_xml="1"$></loc>
<priority>1.0</priority>
<MTEntries lastn="1">
<lastmod><$MTEntryModifiedDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></lastmod>
</MTEntries>
<changefreq>daily</changefreq>
</url>
<MTEntries lastn="10">
<url>
<loc><$MTEntryPermalink encode_xml="1"$></loc>
<lastmod><MTIfNonZero tag="MTEntryCommentCount"><MTComments lastn="1"><$MTCommentDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></MTComments><MTElse><$MTEntryModifiedDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></MTElse></MTIfNonZero>
</lastmod>
<priority>0.9</priority>
<changefreq>daily</changefreq>
</url>
</MTEntries>
<MTEntries lastn="10" offset="10">
<url>
<loc><$MTEntryPermalink encode_xml="1"$></loc>
<lastmod><MTIfNonZero tag="MTEntryCommentCount"><MTComments lastn="1"><$MTCommentDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></MTComments><MTElse><$MTEntryModifiedDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></MTElse></MTIfNonZero>
</lastmod>
<priority>0.8</priority>
<changefreq>daily</changefreq>
</url>
</MTEntries>
<MTEntries lastn="1000" offset="20">
<url>
<loc><$MTEntryPermalink encode_xml="1"$></loc>
<lastmod><MTIfNonZero tag="MTEntryCommentCount"><MTComments lastn="1"><$MTCommentDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></MTComments><MTElse><$MTEntryModifiedDate utc="1" format="%Y-%m-%dT%H:%M:%S+00:00"$></MTElse></MTIfNonZero>
</lastmod>
<priority>0.5</priority>
<changefreq>monthly</changefreq>
</url>
</MTEntries>
<MTArchiveList archive_type="Category">
<url>
<loc><$MTArchiveLink encode_xml="1"$></loc>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
</MTArchiveList>
<MTArchiveList archive_type="Monthly">
<url>
<loc><$MTArchiveLink encode_xml="1"$></loc>
<changefreq>monthly</changefreq>
<priority>0.5</priority>
</url>
</MTArchiveList>
</urlset>
Niall Kennedy (as featured by Six Apart) also published his own template.
Also of related interest might be Movable Type's Microsoft Word template.