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 		<ul>
 			<li><a href="https://github.com/quidsup/notrack">NoTrack</a> - A network-wide DNS server which blocks Tracking sites. Currently works in Debian and Ubuntu.</li>
 			<li><a href="https://namecoin.info/">Namecoin</a> - A decentralized DNS open source information registration and transfer system based on the Bitcoin cryptocurrency.</li>
+			<li><a href="https://pi-hole.net/">Pi-hole</a> - A network-wide DNS server for the Raspberry Pi.  Blocks advertising and tracking domains for all devices on your network.</li>
 		</ul>
 
 		<a class="anchor" name="notebook"></a>