identify breed

Hi there! So I've been wondering about my dog's breed. I was always pretty sure that he's a labrador but my dad told me recently that he remembers that my dog's mom had longer coat so I wonder, maybe she was a golden retriever? He looks like a lab to me, except that there's something with his...

Does this look like a maltipoo? http://dallas.craigslist.org/ftw/pet/5714522276.html

Thought perhaps I should introduce myself before asking a question. I have a mixed breed dog who looks a bit like a fox, only perhaps larger. I've heard some say she has some Border Collie in her (is that how you spell that breed?). I wouldn't mind hearing what you experienced folks think she...