This week Yahoo! has launched Site Badge to keep track of incoming links to a site or blog.
Add a live badge to your blog or website that queries Site Explorer for the number of links to your site or page on the web. Select the type of link counts you want, the size and look of the badge and then cut and paste the code to your web site.
You can also choose whether the badge would show the number of incoming links to the site or to the page on which the badge is pasted. The badge comes in two sizes and you can pick the size that suits your website.