"The Sept/Oct issue of Online
http://www.infotoday.com/online/sep04/index.shtml
features some OA-related articles which are not available on the
magazine's website. Peter Jacso reviews three search utilities in his
Picks and Pans column (p.57), and calls Citebase Search
http://citebase.eprints.org
"the crown jewel of the Open Citation Project,"
http://opcit.eprints.org/
noting its facility in searching open access sources such as arXiv,
cogprints, and BioMed Central. He has high regard for the Institute
of Physics (IoP) archive search interface, but dismisses Google's
interface for searching scholarly archives (consisting of material
from nine scientific publishers,) determining that "duplicates
and triplicates were very common in many of Google's results,
so its reported hits must be discounted ..." He concludes with
the suggestion that scientists not rely on Google for searching
this kind of material, given their "half-hearted implementation"
of their interface to these archives.