Personally, I’m not into digg and am not really sure what it is other than it involves the concept of rating a site. I see the “digg it” icon from time to time and ignore it.
But the simple truth is that both sides have access to the internet.
Find a very popular thread somewhere on anything. Post your screed.
Google.com has an algorithm that's going to look at every element in the thread, see your stuff, and puff it to the top.
Always make sure to post something about anything on any Freeper thread that has a 1,000 plus post count.