User-agent: *
Disallow: /*?catID=
Disallow: /*most-commented/
Disallow: /*most-recent/
Disallow: /*most-viewed/
Disallow: /*highest-rated/
Disallow: /*most-downloaded/
Disallow: /*most-docs-this-week/
Disallow: /*by-relevance/
Disallow: /*pageSize=
Disallow: /*sortDesc=
Disallow: /*/1/
Disallow: /docs/document-preview.aspx
Disallow: /Profiles/profile_new.aspx
Disallow: /purchase/
Disallow: /user/register.aspx

Sitemap: http://www.docstoc.com/sitemaps/sitemap_index.xml