AuthUserFile /dev/null
AuthGroupFile /dev/null
RewriteEngine On
RewriteCond %{HTTP_REFERER} !^http://www.alloweddomain.com/ [NC]
RewriteCond %{HTTP_REFERER} !^http://alloweddomain.com/ [NC]
RewriteCond %{HTTP_REFERER} !^http://216.111.111.121/ [NC]
RewriteRule /*
http://www.domainorpagetoberedirectedhotlinkers.com [R,L]
This prevents all type of hotlinking, even HTML pages...you might wanna modify it to only prevent images and videos like so:
RewriteRule .*[Jj][Pp][Gg]$|.*[Gg][Ii][Ff]$
http://sponsorusually.com