For the latest in Net Citations, try the following link :

Citing Internet Resources - Developed by Classroom Connect, the method shown helps students cite Internet sources as accessed through their Internet browsers.

Otherwise use the following on how to site the things you find online in your bibliographies :

Email
Author of email message. Subject line of the message. [Online] Available email: Student@address.edu from Author@address.edu. date of document or, if date not available, date of download.
Example: Kinyon, Deborah. Nile River Research Project results. [Online] Available email: student5@smallvillehigh.edu from ert@informns.kl2.mn.us, October 23, 1996.

Ftp
Author. Title of item. [Online] Available ftp://address/path/filename, date of document or, if date not available: date of download.
Example: Drees, Richard. Shakespeare and his Muse. [Online] Available ftp://ftp.guten.net/bard/muse.txt, December 1, 1997.

Gopher
Author. Title of gopher item. [Online] Available gopher://address/path, date of document or, if date not available, date of download.
Example: Munson, Eric. India: A Country in Transition: [Online] Available gopher://gopher.india.gov:70/11/papers/trans, May 5, 1947.

OnLine images
Description or title of image. [Online Image] Available http://address/filename, date of document or, if date not available, date of download.
Example: Hubble Space Telescope release in the Space Shuttle's Payload Bay. [Online Image] Available ftp://explorer.arc.nasa.gov/pub/SPACE/GIF/
s31-04-015.gif, October 1, 1996.

Online sounds
Description or title of sound. [Online Sound] Available http://address/filename, date of document or, if date not available, date of download.
Example: Reflections on Apollo. [Online Sound] Available ftp://town.hall .org/radio/IMS/NASA/
100394_nasa_01_ITR.au, September 11,1996.

Online video clips
Description or title of video clip. [Online Video Clip]
Available http://address/filename, date of document or, if date not available, date of download.
Example: Shoemaker-Levy Comet enters Jupiter's atmosphere and breaks up. [Online Video Clip] Available ftp://ftp.cribxl.u-bordeaux.fr/astro/anim
/sI9/breakingup.mpg, March 5, 1997.

Telnet
Author. Title of item. [Online] Available telnet://address, path, date of document or, if date not available, date of download.
Example: Ritter, Matthew. Statistical Weather Data for Ohio, January
1996. [Online] Available telnet://weather.machine.umich.edu, Weather Data/January 1996/States/Zooms/0hio, January 25, 1996.

Usenet Newsgroup
Author. Title of item. [0nline] Available news:newsgroup, date of document or, if date not available, date of download.
Example: Cancro, Art. How to Build a Better Mousetrap.
[Online] Available news:sci.tech.inventions, March 16, 1997

Worldld Wide Web
Author. Title of item. [Online] Available http://address/ filename, date of document or, if date not available, date of download.
Example: Weiser, Daniel. The Cold War Revisited: Germany. [Online] Available http://usa.coldwar.gov/index/cold.war/germany.htm, November 5, 1996.

From poster from Classroom Connect called "Net Citations"
scanned 1997 August 7