Google custom search for guides.rubyonrails.org ?

I often find myself searching inside guides.rubyonrails.org by googling something like “before_filter site:guides.rubyonrails.org”.

I think it would be good if we included a Google custom search [1] on the guides to make it easier to search for info inside. I can do it myself but first would like to know your opinion.

What do you think?

[1] http://www.google.com/cse/

+1. I think some kind of search box would be extremely helpful.

Jeff