1. Google Scholar and Link Resolvers Agenda 1.Google Scholar 2.OpenURLs 3.Link Resolver (SFX)

2. 1. http://scholar.google.com Preferences and defaults –Libraries to search –ip address range Buttons –Full text –Physical copy How does GS know about our holdings? –We tell them –WorldCat –Web crawling

3. 2. OpenURLs What are they? –“…a protocol for interoperability between an information resource and a service component, referred to as a link server, which offers localized services.” (from www.exlibrisgroup.com/sfx_openurl.htm) –“…The underlying concept of the OpenURL standard is that links should lead a user to appropriate resources” (from www.exlibrisgroup.com/sfx_openurl.htm)

4. OpenURLs cont. Example: –http://owens.mit.edu:8888/sfx_local?sid=google&au last=Oldenburg&auinit=SJ&atitle=Nanoengineering+ of+optical+resonances&title=Chemical+physics+lett ers&volume=288&issue=2&date=1998&spage=243& issn=0009-2614

5. OpenURLs cont. National Information Standards Organization NISO Committee AX formed in 2001 OpenURL version 0.1 specification http://www.exlibrisgroup.com/sfx_openurl.htm OpenURL version 1.0 specification http://library.caltech.edu/openurl/Standard.htm

6. 3. Link Resolver - SFX Menu or Direct Linking? –Menu advantages: display alternatives provide more information -Menu disadvantages: slows the user down more mouse clicks

7. SFX cont. Direct Linking Advantages:  rapid, seamless progression to the target article  (near) instant gratification Disadvantages:  Doesn’t exploit multiple FullText targets  Bypasses other library services

15. More information Google Scholar help: http://scholar.google.com/scholar/help.html OpenURL specifications: ver. 0.1 http://www.exlibrisgroup.com/sfx_openurl.htm ver. 1.0 http://library.caltech.edu/openurl/Standard.htm SFX: http://www.exlibrisgroup.com/sfx.htm

16. Contact Info Rich Wenger, Systems Programmer, MIT Library rwenger@mit.edu 617-253-0035