Better Robots.txt

Hi all,

What will be the better robots.txt rule for ELGG 1.8 platform? I did a search on the forums and google and it seems that there has been lot of change for 1.8 version. I am using the below rule for my robots.txt file.

User-agent: *
Disallow: /_css
Disallow: /_graphics
Disallow: /install
Disallow: /cgi-bin
Disallow: /documentation
Disallow: /engine
Disallow: /js
Disallow: /mod
Disallow: /pages
Disallow: /languages
Disallow: /services
Disallow: /settings
Disallow: /simplecache
Disallow: /vendors
Disallow: /?offset