Google Webmaster Tools now have the option to download the most recent links, downloaded excel has two columns, Link URL and date on which Google discovered the link.
Here is screenshot for the same
Matt Cutts tweeted this feature
You can now download links from Google *sorted by date*. Nice. Look for “Download latest links” in console UI. Pass it on!
By this option, now site owners can have a better idea about which links may have resulted in negative or positive rankings of the website.