I posted recently on some subtle changes to the SwissProt format. Just noticed another – Wikipedia links in the CC line. From entry Q13315:
CC -!- WEB RESOURCE: NAME=Wikipedia ataxia telangiectasia mutated entry; CC URL="http://en.wikipedia.org/wiki/Ataxia_telangiectasia_mutated".
I guess this means that Wikipedia is now an acceptable academic resource for biology.