How exactly do you do the backlinking thing? Do you literally create supposedly related sites with 'rehashes' of your same articles and place a link on one to

How exactly do you do the backlinking thing? Do you literally create supposedly related sites with 'rehashes' of your same articles and place a link on one to the other? There was a story on here a few weeks back by someone leading the 4 hour work week nomadic lifestyle and it in the comments I think it was hinted that was the case.