.htaccess sample list plus domain blocking

As described you can block via the use of .htaccess. Here is a sample list to stop trackback spam (or splogs) from occuring in the first place.

Here is a list already made available to use, which blocks several spams.

# Single word blocks
RewriteEngine On
RewriteCond %{HTTP_REFERER} poker [OR]
RewriteCond %{HTTP_REFERER} medicine [NC,OR]
RewriteCond %{HTTP_REFERER} pills [NC,OR]
RewriteCond %{HTTP_REFERER} diet [NC,OR]
RewriteCond %{HTTP_REFERER} viagra [NC,OR]
RewriteCond %{HTTP_REFERER} mortgage [NC,OR]
RewriteCond %{HTTP_REFERER} casino [NC,OR]
RewriteCond %{HTTP_REFERER} insurance [NC,OR]
RewriteCond %{HTTP_REFERER} loan [NC,OR]
RewriteCond %{HTTP_REFERER} buy [NC,OR]
RewriteCond %{HTTP_REFERER} xanax [NC,OR]
RewriteCond %{HTTP_REFERER} meridia [NC,OR]
RewriteCond %{HTTP_REFERER} incest [NC,OR]
RewriteCond %{HTTP_REFERER} lesbian [NC,OR]
RewriteCond %{HTTP_REFERER} viagra [NC,OR]
RewriteCond %{HTTP_REFERER} adult [NC,OR]
RewriteCond %{HTTP_REFERER} hentai [NC,OR]
RewriteCond %{HTTP_REFERER} tramadol [NC,OR]
RewriteCond %{HTTP_REFERER} phentermine [NC,OR]
RewriteCond %{HTTP_REFERER} gambling [NC,OR]
RewriteCond %{HTTP_REFERER} texas- [NC,OR]
RewriteCond %{HTTP_REFERER} holdem [NC,OR]
RewriteCond %{HTTP_REFERER} pharmacy [NC,OR]
RewriteCond %{HTTP_REFERER} ultram [NC,OR]
RewriteCond %{HTTP_REFERER} tramadol [NC]
RewriteRule .* - [F,L]