User-agent: Mediapartners-Google* 
Disallow:

User-agent: Googlebot* 
Disallow:

User-agent:  *
Disallow:

Sitemap: http://www.chatta.it/sitemapsindex.aspx
Sitemap: http://www.chatta.it/sitemapsindex_users_1.aspx
Sitemap: http://www.chatta.it/sitemapsindex_users_2.aspx