Since the advent of CapGeek.com and it's successors, fans have become much more involved in looking at the salary cap. However, those sites aren't flawless and should be taken with a grain of salt.
Over the past couple of months, I have been doing a lot of analysis work on the Tampa Bay Lightning and their cap situation going into the next few years in regards to a potential Steven Stamkos extension as well as the coming deals for players like Nikita Kucherov, Victor Hedman, Jonathan Drouin, Tyler Johnson, and Ondrej Palat.