Introduction

Jamie Blustein <jamie@uwo.ca> advises
Gerard Salton's 1989 book seems to me to be the most cited reference. It's good too. I think my MSc. thesis gives a reasonable overview of IR as it applies to Usenet messages in the context of comparing some other methods. I mention some papers that Gerry doesn't.
@Book{Salton89,
        Author="G. Salton",
        Title="Automatic Text Processing: The Transformation,
          Analysis, and Retrieval of Information by Computer",
        Publisher="Addison-Wesley", Year=1989,
        Annote="Good introduction to information retrieval.",
        ISBN="0-201-12227-8",
        Keyword="Classic",
        SeeAlso="\cite{Salton/McGill}"
}
 
@MastersThesis{MSc,
        Title="An Evaluation of Tools for Converting Text to Hypertext",
        Author="William James Blustein",
        School="University of Western Ontario",
        Address="London, Ontario, Canada",
        Year=1994,
        SeeAlso="LSI\cite{LSI}, Jones and Furnas \cite{GeomSimil},
          TOPIC\cite{AutoGen}, VISAR\cite{VISAR}, Bernstein's
          apprentice\cite{Bernstein}"
        Note="\path|ftp://ftp.csd.uwo.ca/pub/thesis/Blustein.MSc.Thesis.ps.Z|"
}

Net resources

comp.theory.info-retrieval

CL's interests

"adaptive" methods, ...

Cameron Laird's notes on information retrieval/claird@phaseit.net