The Webmaster Tools is now updated to show you which domains “link to your site”, in addition to other improvements. Notice on there are three main sections:
The domains linking most to your site, (Who links the most)
The pages on your site with the most links (Your most linked content)
The anchor text external sites are using when they link to your site. (How your data is linked)
Who links the most
Clicking on “More >>” Link under the “Who links the most” section will take you to a new view that shows a listing of all the domains that link to your site. Each domain in the list can be expanded to display a sample of pages from your site which are linked to by that domain.
The "More >>" link under each specific domain lists all the pages linked to by that domain. At the top of the page there is a total count of links from that domain and a total count of your site's pages linked to from that domain.
Your most linked content
Click on “Your most linked content” view from the overview page, you’ll see a listing of all your site’s most important linked pages. There's also a link count for each page as well as a count of domains linking to that page. Clicking any of the pages listed will expand the to show you examples of the leading domains. Linking to that page and the number of links to the given page from each domain listed. The data used for link counts and throughout the "Links to your site" feature is more comprehensive now; including links redirected using 301 or 302 HTTP redirects.
Each page listed in the "All linked pages" view has an associated "More >>" link which displays all the domains linking to that specific page on your site.
Each domain listed leads to a report of all the pages from that domain linking to your specific page.
We hope the updated “Links to your site” feature in Webmaster Tools will help you better understand where the links to your site are coming from and improve your ability to track changes to your site’s link profile. Please post any comments you have about this updated feature or post your questions in the Webmaster Help Forum. We appreciate your feedback since it helps us to continue to improve the functionality of Webmaster Tools.