Abstract: User-generated content on the Social Web is often locked within information silos. Inadequate APIs or, worst, the lack of APIs obstruct reuse and prevent the opportunity to integrate similar content from different communities. In this paper we present a Web mashup which combines information from different social libraries. Aggregated information, including both classic book metadata and user-generated content, is represented as linked data in RDF to allow machine computation and foster reuse among different applications.

1. Colibrary:
A Web Mashup for Social Libraries
Domenico Gendarmi,
Filippo Lanubile
University of Bari, Italy
Workshop on Mashups, Enterprise
20/04/2009
Mashups and Lightweight Composition
on the Web (MEM 2009)

2. Motivations
Social Web
Plenty of user generated content available for web
mashups
(Almost) No API for retrieving social information
Content generated by users is locked in every single
social application

3. The Social Libraries Context
Digital libraries on the web that exploit the role
of users by
Fostering active participation
Encouraging feedback among participants
Some Examples
LibraryThing
Anobii
Bibsonomy
CiteULike

4. Goal of our mashup
Provide a Web API to reuse content in the
digital library domain
Other applications can exploit different types of
information about books and publications
Users of social libraries can share information
beyond a single web site

5. System Overview
Colibrary
Interhash
ISBN
Web API
Publication
Book
Description
Description
Digital Library

6. Main features
RESTful Web API
Unique identifier for a resource
ISBN for books
Interhash for publications
Combination of bibliographic and social information
Linked data as output of the service
Web client
Browsing output of the mashup through a classic
web-based interface

7. Architecture

8. Live Demo

9. Current Direction
Web API available @
http://collab.di.uniba.it/Colibrary/books/doc.html
http://collab.di.uniba.it/Colibrary/books/doc_pubs.html
Web client @
http://collab.di.uniba.it/ColibraryClient/
Exploratory case study using semi-structured
interviews conducted with seven users of the
Anobii community

10. Future Direction
Providing a scalable service that enables third-
party applications to make reference to our
RDF data
Interlinking output of Colibrary with other Linked
Data sets
Conducting a controlled experiment with real
users of social libraries

11. Thank you
Domenico Gendarmi
gendarmi@di.uniba.it
PhD Student – Dipartimento di Informatica –
University of Bari
Collaborative Development Group
http://cdg.di.uniba.it/