PHP and Perl Links:

http://hoohoo.ncsa.uiuc.edu/cgi/intro.html
http://www.php.net/manual/en/faq.general.php#AEN74233
http://www.javascriptkit.com/howto/phpcgi.shtml
http://adashimar.hypermart.net/
http://www.cclabs.missouri.edu/things/instruction/perl/perlcourse.html
http://www.zend.com/zend/art/intro.php
http://www.alt-php-faq.org/local/79/
http://www.thesitewizard.com/archive/phpvscgi.shtml


Servlet Links:

http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/Servlets.html
http://courses.cs.vt.edu/~cs2304j/notes/04-23-02%20-%20Servlets.html
http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/
http://www.novocode.com/doc/servlet-essentials/
http://www.javaworld.com/jw-12-1998/jw-12-servlethtml.html
http://www.mscs.mu.edu/~schwerm/WebTech2001-02Fall/notes/lec_sept25.html
http://www.magelang.com/faq/view.jsp?EID=43542
http://www.coolservlets.com/servlets.html

Servlet container Links:

http://archives.real-time.com/pipermail/cocoon-devel/2001-May/008014.html
http://prasks.webahn.com/architect/ch2.html
http://nonstop.compaq.com/docs/IO/5971/ATT/SVLJAVPD.pdf

How they're used links:
http://coldjava.hypermart.net/servlets/calendar.htm
http://www.rozina.com/downloads/servlets/notepad.htm
http://www.cyscape.com/showbrow.asp
http://www.novocode.de/doc/servlet-essentials/chapter2c.html
http://www.rozina.com/coldjavaservlets.html

mime types:
http://www.aibn.com/help/Learn/mimetypes.html
http://www.ipaysecure.com/FAQS/3.4.html