http://www.bc.edu/bc_org/avp/ulib/bap/bappath.html

These examples will show you a little variety.  "How to Begin a Research
Paper in Art History" will give you an example of one with a little
narrative text mixed in.  Many of the others are just boring lists of
titles with call numbers - I think those would be fine for a scholar but
would they spark a child's interest in reading?
 

A 5th grade pathfinder on 'Ancient Egypt':

http://falcon.jmu.edu/~ramseyil/egyptpath.htm

Major snore man!
 
 

A Waterloo Public Library Genealogy pathfinder:

http://www.wplwloo.lib.ia.us/path-genealogy.html

Not too bad.  Still in the list of books & sources mode...doesn't anybody
annotate these things?