url alias
?q parameter
I just discovered an unfortunate function in Drupal 5.x (Drupal 5.20) which creates multiple content in Google.
http://www.example.com/?q=Drupal
Where Drupal is an url alias.
http://www.example.com/Drupal
&
http://www.example.com/?q=Drupal
are offcourse the same but google catches both and indexes them.
adding Disallow: /?q= to robots.txt wil block these multiple urls.
