Are links shown by Google, Yahoo, MSN and others all seperate links or are they the same. What I am trying to say is that if you get another site to link to you and both Google and Yahoo show it when you search your domain, are they the same or seperate links?
Yes, Google, Yahoo and MSN may show the same links. The link: command on Google is pretty much worthless, for entertainment purposes only. Try this: http://siteexplorer.search.yahoo.com/
Each search engine determines what they count as a backlink. Not every backlink will be counted by all three. Google only shows a portion of backlinks to keep people from trying to duplicate the backlinks of a top ranking site - not because they aren't aware of them. Google may not count, or allow PR to pass from certain links. MSN and Yahoo will always show more backlinks, but that doesn't mean google isn't counting them as backlinks internally.