How do you guestimate facebook brand searches?

[Nightwing]

Buongiorno from Weherby Uk

With brands all clamouring to get a stake in Facebook I wonder how many people actually search for brands on facebook. For example www.evian.com promote their facebook page on their bottles but how could you work out how many searches are entered in the facebook search box for evian as illustrated here:http://i216.photobucket.com/albums/cc53/zymurgy_bucket/facebook-search-volumes.jpg

So my question is please: "How do you work out search volumes for search entries via facebook"?

Thanks in advance

[DMGoo]

Unfortunately there is no real easy way to do this at present because as far as im aware (may be wrong) facebook keeps its search volume data to itself.  Although this may change in the near future as they have recently rolled out their own PPC platform for sponsored results.

Instead I would keep an eye on other metrics such as brand mentions and likes and the rate at which these are gained during your social medial campaigns.