Most of you may be familiar with this .Very simple and effective.
To see what people are talking about your blog type the below in the URL field.Instead of my blogname,give yours.
You've to use Google for this :)
This method will alert you whenever someone(who is indexed on Google) links to you
1. Type www.google.com/alerts in the URL box
2. In the search term field, give --- xyz.blogspot.com
3. In the type field, select “Blogs”
4. In the “How often” field, select “As it happens” (second option)
5. In the email field, give your email.
That’s it. Now whenever, a site that’s indexed on Google links to you, you’ll get an alert mail in your inbox. You can also sign in to change these alerts at a later time.
You can use the same method for your website also.Change the above values accordingly.
Credit for this info goes to this blogger here
Finally,not very comprehensive but you can try it out
In the Google Search box type "link:www.yoursite.com" or "link:xyz.blogspot.com"