BBC
The BBC offers a good overview of the issue, with documented facts that you can use to support your points. The website is easy to understand and the presentation is pretty clear.
http://www.bbc.co.uk/science/hottopics/animalexperiments/
Debatepedia
This website is just great to get started. It offers a good description of the different arguments for and against animal testings. Everyone should at least check these arguments.
http://wiki.idebate.org/index.php/Debate:Animal_Experimentation#Argument_.231
Overview document
To check over the different points for and against animal testing. It is a PDF, so it might be harder to find the information you want.
http://www.hsus.org/web-files/PDF/ARI/ARIS_An_Overview_Of_Animal_Testing_Issues.pdf
Supporting animal testing
North Carolina Association for Biomedical Research
It is one of the only online advocate of animal testing. Unfortunately, there are not as many sites promoting Animal testing as there are sites against. Then, if you support animal testing, you should get a look at this site.
http://www.ncabr.org/biomed/FAQ_animal/faq_animal_8.html
Against animal testing
About animal experiment in Canada
This website, against animal testing, gives a good overview of the situation and highlights some arguments against animal experimentation.
http://www.cruelscience.ca/
PETA
PETA is the most well-known organization that defends animal rights. They offer a great deal of arguments and documentation to prepare you debate.
For the main website go to: http://www.peta.org/mc/factsheet_experimentation.asp
For their page on animal experiment go to: http://www.stopanimaltests.org/index.aspx
For their page on counter arguments (a must see), go to: http://www.stopanimaltests.com/f-pointcounterpoint.asp
If you have any other website that you think may be useful or interesting, just let me know.
Thanks.
