Track and analyse searches

It would be great to track and analyse the searches made by the users.

I have in mind something like this plugin for Wordpress - but of course made for vBulletin:
Search Meter: a WordPress plugin Semicolon

Many users have a question but don't ask for an answer but instead search for it.

So if you know what people search for you can answer questions that haven't even been asked ;-)

And of course relevant content is always good for seo.

Markus

this is built into google analytics.

just add "q" to the search param on the settings of your domain

Thank you, that helps. But I can't see searches without results - or can I?