Here is some information relative to the strength of various knots & the reasons why in PDF format. Adobe Reader required.
http://www.allaboutknots.com/pdf/8_strength.pdf
Relative to opinions on knot strength, attached is another web site with another opinion.
This site and others referenced on it, have some good information. (testing methods, etc.)
Very complete testing article. It also does offer more good knot info links at the end too. He has my favorite fishing knot website It now has all of it’s fishing knots animated too. - slojes
Sorry Slojes but I had to remove the reference link as required by the BFT. Kindly refer to the following link to new BFT members. Thanks for your cooperation.
BFT_RULES_&_REGULATIONS
Relatively marinews provides various animated knots illustration.
Sorry mohit1234 for I had to delete your links for several reasons. The main one being that it leads to another forum. Kindly check our rules & regulations as stated in the attached link.