Enjoy
Pinterest is used to pin images to different categorized boards (like bulletin boards). Great way to find cool blogs, categorize inspirations, trends and designers you like.
http://pinterest.com/
Lookbook: Great styling ideas. You can fan someone or simple like one of their looks they post.
http://lookbook.nu/
Trend Union: One of the biggest names in Trend Forecasting. Great website for inspiration, knowledge and resources.
http://www.trendtablet.com/
Fashionista: career postings but also style updates, news etc
http://fashionista.com/
Women's Wear Daily: the publication that rules all
http://www.wwd.com/
Style.com: Best source to see runway looks (in my opinion)
http://www.style.com/
Fashion Net: great place to get inspiration from art, photography, current fashions etc.
http://www.fashion.net/