I have a MBBS in China website and also a Corporate Blog attached to this website. More than 10 articles on this blog has got a pagerank of 3 in this google update. My question is, if I link each of the article to my main website's inner pages with a keyword, will I get any link juice ? Currently I dont have any links in these articles.
Sure, you will definitely get the link juice from those blog site. Make sure to use your keyword as an anchor text to link with any particular page in your website.
I agree with Balaji Naidu ... Having links from the inner pages of a website pointing to the homepage is a good practice in terms of on-page SEO.