Frog dissection collection of labs: http://shs.westport.k12.ct.us/mjvl/biology/dissect/frog.htm
Virtual Frog Dissection: http://biology.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=biology&cdn=education&tm=23&gps=373_649_1276_654&f=00&tt=2&bt=0&bts=0&zu=http%3A//curry.edschool.virginia.edu/go/frog/menu.html
Frog guts virtual dissection: http://biology.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=biology&cdn=education&tm=12&gps=331_546_1276_654&f=00&tt=2&bt=0&bts=0&zu=http%3A//froguts.com/flash_content/demo/frog.html