I realise that obtaining ten links from one site isn't as good as one link from 10 sites. But I could do with an explanation

on how this also applies to 10 links from a very authoritative site such as the BBC. I mean if I'm getting link juice from 10

different pages on a very authoritive domain, thats got to be a good thing right? on a par to 10 links from 10 different

sites?