  Purpose: The purpose of this paper is to measure the coverage of Google
Scholar for the Library and Information Science (LIS) journal literature as
identified by a list of core LIS journals from a study by Schloegl and
Petschnig (2005).
  Methods: We checked every article from 35 major LIS journals from the years
2004 to 2006 for availability in Google Scholar (GS). We also collected
information on the type of availability-i.e., whether a certain article was
available as a PDF for a fee, as a free PDF, or as a preprint.
  Results: We found that only some journals are completely indexed by Google
Scholar, that the ratio of versions available depends on the type of publisher,
and that availability varies a lot from journal to journal. Google Scholar
cannot substitute for abstracting and indexing services in that it does not
cover the complete literature of the field. However, it can be used in many
cases to easily find available full texts of articles already found using
another tool.
  Originality/value: This study differs from other Google Scholar coverage
studies in that it takes into account not only whether an article is indexed in
GS at all, but also the type of availability.
