Data link Layer....

http://webopedia.internet.com/quick_ref/OSI_Layers.asp

Looks like many a site agree with them. I was taught it on the job at verizon and deal with nothing but networking. It could very well be they were wrong. However that SUCKS! I have thought it was Logical layer all this time and now I am wrong 2 times in a post!!!

BTW a cool OSI tut

http://www.eece.ksu.edu/~eece542/Lectures/osi.ppt

http://www.firewall.cx/index.php?c=osi-intro

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/network/hh/network/102gen_07vr.asp