User-agent:  *
Allow: /
Disallow: /bad-bot/
Disallow: /images/
Disallow: /downloads/

User-Agent: Radian6
Disallow: /
Crawl-Delay: 2

User-Agent: R6_FeedFetcher
Disallow: /
Crawl-Delay: 2

User-Agent: R6_CommentReader
Disallow: /
Crawl-Delay: 2