There's one called NW Trail Bum that's so awesome that every time I read one of his articles, I poop my pants. I think the guy is the James Bond of backpacking.
Podcasts:
Dirtbag Diaries
The Trail Show
Blogs that are fairly active (I'll forget many but will update later):
Pmags
Carrot Quinn (emphasis on this one)
Pop Up Backpacker
Hikelighter
Sticks Blog
Sweeping the Garden
One blog that has nothing to do with backpacking but I really enjoy is Zen Habits.
There are a lot of inactive blogs with great trip reports. Google "Backpacking Scotland, Iceland, Wonderland, JMT, etc" and you'll find some great TRs.