.dm is the country code top-level domain (ccTLD) for Dominica. Registrants of a second-level .dm domain get the corresponding third-level names within .com.dm, .net.dm and .org.dm automatically included. There are no restrictions on who can register these names, but they are not very heavily used.
One example of a current ".dm" web property is a URL shortnener, play.dm, used exclusively by Playdom, which is an example of domain hacking.
Warning: simplexml_load_file(http://gdata.youtube.com/feeds/api/videos/-/.dm?orderby=viewCount&max-results=10) [function.simplexml-load-file]: failed to open stream: HTTP request failed! HTTP/1.0 410 Gone
in /home/askbio/public_html/index_bio.php on line 257
Warning: simplexml_load_file() [function.simplexml-load-file]: I/O warning : failed to load external entity "http://gdata.youtube.com/feeds/api/videos/-/.dm?orderby=viewCount&max-results=10" in /home/askbio/public_html/index_bio.php on line 257
Fatal error: Call to a member function children() on a non-object in /home/askbio/public_html/index_bio.php on line 260