Living in eastern NC, we can't cover Upstate and WNC hiking trails as we'd like, but a few other folks can. I've already pointed out Rich Stephenson's http://www.ncwaterfalls.com/ and A Day's Drive From Greenville, so below are additional links to reports on trails located in the western Carolinas.
SC Jack: http://scjack.blogspot.com/
Moderator of my hiking group, CarolinasAdventures, Jack is an avid hiker and camper, and has covered a lot of ground in both states. Unafraid to bushwack when necessary, Jack tackles tough trails in rugged territory. Note: He recently began this blog, so not all reports have been posted.
Andy (and Boone): http://www.angelfire.com/trek/fungi/
Another member of CarolinasAdventure, Andy and his dog, Boone, also enjoy a hearty hike, whether it be on a mountain trail or snaking along a river in a canoe. I'm a huge fan of his reports, which are well-written and often hilarious.
Brenda Wiley: http://www.brendajwiley.com/hiking.html
Brenda hits the trail as often as possible and I love reading her reports. A fan of trail maps, she includes excellent details and photos in each post. You can read her report on Raven Cliff Falls on this blog.
Appalachian Treks: http://appalachiantreks.blogspot.com/
I haven't a clue who runs this site, but beautiful photos and informative posts make it a great read.
THE REQUIRED DISCLAIMER: I haven't read every post, nor have I hiked all the trails they mention, so I can't vouch for the accuracy of the information on their sites. As with my blog, only use the personal observations you find on these sites as a guide. For your safety, and the safety of your family, research all outdoor destinations before visiting them.