Glad you liked it theos, thanks for your comment.

Hi Joan, sure can. Essentially the graph illustrates what factors search engines (specifically Google) look for when trying to rank pages vs. those that will hinder your rankings, and it is using it's own symbols to apply these labels, as you would find in the periodic table. Let me give you an example... Quality Content (CQ) has a +3 influence, meaning having this on one's blog/site is key to getting good rankings. On the flip side you can have a violation on having content that is too thin (VT, which has a metric of -2) - in other words, very low value to the end user as well as very short lived rankings (if any). Hope this clear it up a little bit more, if not feel free to leave me another comment and I'll get back to you. Thanks.