User-Agent: *
Disallow: /*.jpg$
Disallow: /*.gif$
Disallow: /*.png$
Disallow: /*.pdf$
Disallow: /*.doc$
Disallow: /*.xls$
Disallow: /*.log$

User-agent: HatenaScreenshot
Disallow: /

User-agent: livedoor ScreenShot
Disallow: /

User-agent: SnapPreviewBot
Disallow: /

User-agent: je-pu-pu thumbnail
Disallow: /