Instiki integrated into rails site?

Hello. My name is Steve and I am a newbie to rails (but loving what
I've seen so far).

I'd like to have wiki-type functionality within my rails site. By that
I mean, I'd like to havel, say, a small "help" box in a right hand
column of my site. This help box would contain, um, helpful info about
the current page. I would like that help box to be editable in wiki
fashion by anyone.

So I have instiki running (now another rails app) and I have my app
running. Any pointers on how I pull pages from Instiki where they show
up in a small box on my site? (that box would have a link to the
instiki page so it can be edited)

any help would be appreciated.

Steve