Our textbook, homepage: http://www.sims.berkeley.edu/~hearst/irbook/ Sadly, doesn't appear to be updated since 1999.
Test Collections: The one place I found that actually has the files,
typically tarred, that you can download
is here at Glasgow.
A collection of resources from ACM SIGIR (Special Interest Group on Information Retrieval)
The SIGIR homepage.
Marti Hearst is a Professor at UC Berkeley. Her homepage http://www.sims.berkeley.edu/~hearst/ has links to various excellent courses she has taught there, such as
Andrea LePaugh at Princeton also has a course with many useful resources:
http://www.cs.princeton.edu/courses/archive/spring02/cs435/schedule.html
Some of her resource links
Picture of Andrea here.
Open Archives Initiative (OAI) homepage:
http://www.openarchives.org/
OAI list archives:
http://oaisrv.nsdl.cornell.edu/pipermail/oai-general/
Rijsbergen's classic Information Retrieval book online: http://sherlock.berkeley.edu/IS205/IR_CJVR/ (1979, but still worth reading!)
Go to IS535 home page. or RPF's Teaching Gateway or homepage