Hi,

The current issue of Ariadne (http://www.ariadne.ac.uk/issue57/) which 
has just been published contains an article about the "SeeAlso" 
linkserver protocol:

Jakob Voß: "SeeAlso: A Simple Linkserver Protocol", Ariadne Issue 57, 
2008. http://www.ariadne.ac.uk/issue57/voss/

SeeAlso combines OpenSearch and unAPI to a simple API that delivers a 
simple list of links. You can use it for dynamically embedding links to 
recommendations, reviews, current availability, reviews, search 
completion suggestions, etc. It's no rocket science but I found a well 
defined API with reusable server and client better then having to hack a 
special format and lookup syntax for each single purpose.

The reference client is written in JavaScript, see 
http://ws.gbv.de/seealso/seealso.js and 
http://ws.gbv.de/seealso/javascript-client/doc/ and the reference Server 
is written in Perl, see http://search.cpan.org/dist/SeeAlso-Server/ - 
but implementing it in any other language should not be complicated. I'd 
be happy to get some feedback either in form of code, applications, or 
criticism :-)

I noted that SeeAlso::Server is the only implementation of unAPI at CPAN 
so far - if someone is interested, we could extract parts into an 
independent unAPI package. The WWW::OpenSearch::Description package is 
also worth to consider for use in SeeAlso::Server.

Greetings
Jakob

-- 
Jakob Voß <[log in to unmask]>, skype: nichtich
Verbundzentrale des GBV (VZG) / Common Library Network
Platz der Goettinger Sieben 1, 37073 Göttingen, Germany
+49 (0)551 39-10242, http://www.gbv.de