Summon will have new Contextual Facets in the upgrade happening this week. Summon will now expose 4 new facets: Author, Genre, Region and Time Period when the result set is limited explicitly to “Items in the library catalog” or with the Content Type of “Book.” This allows for greater display of the curated metadata from the library’s MARC records in the context of our catalog. There are other times when targeted facets become useful in managing records based on the nature of the result set. Look for more Contextual Facets soon.

You can see how this new feature works at the Summon Preview Site:
http://preview.summon.serialssolutions.com/search?s.q=renewable+energy&s.fq[]=SourceType%3A%28%22Library+Catalog%22%

Here is a screencast that reviews the new feature:
http://www.youtube.com/watch?v=DsAo0K2-H-A
Cheers, Anne