http://artresources.com/
This international database of galleries, museums, schools, artists, art publications, booksellers, art shows, fairs, and events is maintained by the Ferguson-Taylor Group.

http://the-tech.mit.edu/
Look over the past ten years of MIT's The Tech, a weekly news, arts, and culture magazine.

http://www.gii.getty.edu/
Into art history? These databases (nicely profiled by the Getty Foundation) are a great starting place.

http://www.cs.cmu.edu/Web/books.html
This annotated index of more than 1,200 books whose full text is available online is maintained at Carnegie-Mellon's School of Computer Science site.

http://the-tech.mit.edu/Shakespeare/works.html
MIT's The Tech provides a great reference to the Bard of Avon's work. Enter a quotation, and get a reference to the play, act, and scene it's in--then read the whole thing. There's even a glossary to help with those 16th-century terms.

http://humanities.uchicago.edu/ARTFL/ARTFL.html
Find le mot juste from this database of 15th- to 20th-century French literature from the American Research on the Treasury of the French Language (ARTFL).

http://etext.virginia.edu/mideng.browse.html
The University of Virginia's electronic text collection of 26 Middle English works ranges from Chaucer and William Dunbar to that prolific all-rounder, Anonymous.

http://casbah.dmn.com/directory/
A music search that's less gooey than IUMA and gets results. Opt for the artist directory over the slim search of musician home pages to find discographies on a huge lineup of groups.

http://gort.ucsd.edu/newjour/
Writing the great American thesis? Research the medical, scientific, or artistic journal of your choice.

http://commerce.corel.ca/
Browse this online image warehouse for your favorites, from desert sunsets to Degas's Dancers. Ogle thumbnails or shell out seven big ones to download.

http://isurf.interpix.com/
It's true that pictures tell a thousand words, but not when it takes a thousand years to view them. This engine locates the images you need and gives you a selection of thumbnails that are downloadable in seconds.

http://julmara.ce.chalmers.se/stefan/WWW/saifai_search.html
Book reviews collected from several science fiction newsgroups.

http://www.calendar.com/concerts/
An up-to-date calendar of live music performances around the world.

http://www.lib.ncsu.edu/stacks/alex-index.html
North Carolina State University's definitive catalog of over 2000 electronic texts on the Internet.

http://the-tech.mit.edu/Classics/
MIT's archive of 376 Greek and Roman texts, complete with commentary from MIT's journal The Tech is (dare we say it?) a classic.