National guys are less important to me than the local beat writers; guys like John McClain (@McClain_on_NFL) for the Texans, Kent Somers (@kentsomers) for the Cardinals, Bedard for the Patriots, Matt Maiocco (@MaioccoCSN) for the 49ers, Omar Kelly (@OmarKelly) for the Phins, Sal Maiorana (@salmaiorana) for the Bills, Tom Pelissero (@TomPelissero) for the Vikes, Manish Mehta (@MMehtaNYDN) for the Jets, Kevin Acee (@UTKevinAcee) for the Bolts, etc. ect. Some sites have published their own lists of beat writers for you to pick and choose from, notably Rotoworld and the Fake Football. I'm constantly adding and weeding my list for guys (and gals) who tweet relevant stuff (an add-on like TweetDeck is good for organizing, say, beat writers from national reporters from fantasy writers from statistics guys)
Now, you might ask, why would I need to follow teams that don't even represent players I don't even own or want to own?
One very relevant anecdote: last season, the severity of Fred Jackson's leg injury only became known mid-week, after waivers had cleared. Since I got Sal Maiorana's tweet before my leaguemates, I was able to scoop up CJ Spiller immediately. That move helped drive me to the championship.