One of the more popular new developments this year is the OZQoC Chart (Pronounced "Oz Coke"), which is a handy visual representation of how players are being used. At a glance it's an easy way to understand the roles assigned to each player so we have the context in which to study their statistics.
Plus-minus has been a much-maligned statistic since the NHL began to record it officially in 1967. Such status is not deserved. There are certainly problems with the statistic as it is currently formulated, such as the effects of teammates and the short-handed bonus and power-play penalty. But plus-minus cannot be taken literally; it must be interpreted, more so than other common statistics. It can be a very informative number when considered in an appropriate form, in the appropriate context and over an appropriate time frame.