Alıntı
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://aaaa.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://aaaa.com$ [NC]
RewriteCond %{HTTP_REFERER} !^http://bbbb.net/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://bbbb.net$ [NC]
RewriteRule .*\.(jpg|jpeg|gif|png|bmp|swf|zip|mid|midi)$ [R,NC]
şeklinde aaaa, bbbb siteleri gibi çoğaltabilirsin