For jewelry blogs, there are so many that I love, but some of my favorites are:
http://www.mardecolorrosa.com/
http://blog.charmandchain.com/
http://erstwhilejewelry.com/blog/
http://www.artjewelryforum.org/
I hope this helps and thanks so much for asking!.. If I think of anything else I’d let you know!..