I remember Dot had a topic a while back about some guys stealing his bandwidth linking to the pics on his server. I've been running into the same problem lately & found a neat solution

Just rename the sites you want to allow to your pics & add this to your .htaccess file.

#Begin Image Hotlink Code
RewriteCond %{HTTP_REFERER} !^https?://(.*.)?dizero.com [NC]
RewriteCond %{HTTP_REFERER} !^https?://(.*.)?studioforums.com [NC]
RewriteCond %{HTTP_REFERER} !^https?://(.*.)?rig-talk.com [NC]
RewriteCond %{HTTP_REFERER} !^https?://(.*.)?thegearpage.net [NC]
RewriteRule .(jpg|jpeg|png|gif)$ - [NC,F,L]
#End Image Hotlink Code


Best,
K.