Hi all,

Here are some other links (besides those already posted):

Data book shelf:
http://www.crhc.uiuc.edu/~dburke/databookshelf.html
This is a huge list of direct links to manufacturers' *datasheet*
pages. Useful when searching for a specific manufacturer IC.

QuestLink:
http://www.questlink.com/
Search engine for datasheets and application notes of many
manufacturers.

Global semiconductor datasheet library:
http://www.semi.com.tw/
IC search, about 45000 datasheets are stored on this site.

SemiDex, Inc. Memory and IC Database:
http://www.semidex.com/home.html
Parametric search on more than 100000 ICs.

GIICM:
http://www.xs4all.nl/~falstaff/giicm.html
http://www.repairfaq.org/cgi-bin/filipg/giicm_form.html
(It's a lot of time I don't check them, so these links may have changed)
Brief description and ASCII pinout of the most common ICs (40xx, 74xx..)

Last, but not least, a huge list of links to companies, organizations,
publications etc.. in the electronic engineering and computer science
field can be found here (EE/CS mother site):
http://www-ee.stanford.edu/soe/ieee/eesites.html

Hope this helps,
Adriano