Hi,

are there any examples of functioning OpenSearch interfaces to library
catalogs or library information systems?

I'm specifically interested in those that not only advertise a text/html
interface to their catalog, but who include OpenSearch response elements.
One example I've found is Evergreen; though it's not clear to what extent
this interface is used or implemented. For instance, their demo
installation's OpenSearch description advertises an ATOM feed, but what's
returned doesn't validate. (*)

Are there other examples deployed (and does anybody know applications that
consume OpenSearch feeds?)

 - Godmar

(*) See, for instance:
http://demo.gapines.org/opac/extras/opensearch/1.1/PINES/atom-full/keyword/?searchTerms=music&startPage=&startIndex=&count=&searchLang
which is not a valid ATOM feed:
http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fdemo.gapines.org%2Fopac%2Fextras%2Fopensearch%2F1.1%2FPINES%2Fatom-full%2Fkeyword%2F%3FsearchTerms%3Dmusic%26startPage%3D%26startIndex%3D%26count%3D%26searchLang