http://www.gothic-charm-school.com/ Gothic Charm School...What can I say? The Lady of The Manners style isn't for everyone but she has some very good tips on all Gothy issues.
http://ultimategothguide.blogspot.com/ The Ultimate Goth Guide. Amy is brilliant at explaining the Gothy culture and is a very helpful person :D. Also, her pictures of her wonderful outfits could provide years of inspiration.
http://amortaldothapproach.blogspot.com/ I haven't been reading this blog for very long but I've found the posts that have been written very helpful
http://catacombxkitten.blogspot.com/ Another very good blog
I'll add more links as I discover new helpful blogs. Don't be afraid to flick back through past posts, and The Ultimate Goth Guide has quite a few very good posts on the history of Goth, which is suprisingly quite interesting