Exalead revamp

The search company exalead is coming up with new ehnancements that will make the search refine feature easier.


They are moving their refine box from left to right similar to Engineering Village and Factiva's Search 2.0 interface.

I am wondering what was the main reason for this move?

Last week I got an interesting feedback about the location of our refine search box where faceted search (or should I say "guided navigation") is in action. One user stated that he wished that the refine search box was someplace else because of all the sponsored ads that he gets in general search engines like Google, Yahoo etc, he ignores the right hand side of the search result screen.