For people interested in Asian dramas, D-Addicts is a great resource. They even have a Wiki so you can easily find information about all of your favorite shows and their actors. The site isn't just limited to Japanese dramas either. You can also find Taiwanese, Chinese, Korean and Hong Kong dramas. D-Addicts has helped me find a lot of the older dramas that newer fansub groups haven't picked up. They are definitely one of my favorite resources.