The link prism is basically a new "term" or name for tiered linking or a bunch of pyramid linking schemes combined together from different channels. Personally, I wouldn't use this tactic, if the articles are going on article sites it def. won't work. I do of a way that it would work, but I can't divulge that info. on here, but this is also a risky way of getting more links. Google is lowering its value on the signal of inbound links too, so there are 199 other signals to optimize for besides just links.