Doug Orth's All Out Blitz articles at FF Today have long been a favorite of mine. This year and last his contention is that the first 3-4 games of the regular season are now serving as a preseason for NFL teams. I certainly can see that; seems like things are very much in flux to start. Take a look at his latest AOB article to see if you think he can help you pin down where things are going.
I've said it many times -- the late rounds of your draft are what make or break a fantasy football season. Rotoworld has two articles about which players you should keep an eye out for. Here's the link to the NFC players article; that article has in it a link to the AFC players to watch.
numberFire.com discusses 7 players to not draft in 2015. I'd temper that sentiment a bit and change it to not draft too high -- I don't think you avoid drafting Jimmy Graham, but you don't draft him as high in 2015 as you used to.
NumberFire.com lists 5 players (big names) that will be risky to draft. My 2 cents is draft them if they slip down in your draft and you can get them at a bargain with a lower round draft pick, which is where you can afford to take a risk or two.