online catalogs

[Jason C Hicks <jhicks@RUNET.EDU>]

        I was wondering what online catalogs most people have, and
whether or not you are satisfied with it?  Do you find subject searching
difficult for younger users (because they may often have different ideas
about the subject heading)?  Are Boolean searches avaliable, and if so
are they fully explained and easy to use?

        I have run across some catalogs that are a breeze to use, while
others are so difficult.

        Thanks,

        Jason Hicks