16. The apparatus of claim 13 , wherein the candidate search queries to be identified via reformulating the candidate search queries using co-occurrence frequency or point-wise mutual information, or a combination thereof, to increase reliability of the search candidate queries.
13. An apparatus comprising: means for processing search queries based at least in part on one or more search query parameters to identify candidate search queries for an exchange of search related communications; means for originating the identified candidate search queries from different sources or from different users, wherein the identified candidate search queries are considered argumentative, debatable, or subjective based, at least in part, on the one or more search query parameters comprising click-entropy greater than a threshold value as a measure of discussion-orientation of the identified candidate search queries; means for determining that a query from a user exhibits one or more measurable or scorable parameters overlapping one or more of the identified candidate search queries for existing on-going search related communications based, at least in part, on the frequency of the query from the user and the identified candidate search queries having resulted in users navigating to identical network locations and, in response, for inviting the user to participate in the exchange of search related communications; and means for limiting the length or duration of the exchange of the search related communications.