Around 5pm today, I noticed a new tab on Google's webmaster tools -- Links. Competing with Yahoo's Site Explorer, or just the same old small subset returned by a link: search?

The standard link: search shows

Results 1 - 10 of about 234 linking to www.commonplaces.com

The External Links item on Webmaster Tools shows

http://www.commonplaces.com/ 34891

and then breaks it down by page.

There's also an Internal Links item that breaks down links by page, (click the page total to see the list of pages linking to that page).

One thing Yahoo doesn't do: Google shows the last date when the link was found.

Unfortunately, it suffers from one of the same problems as Yahoo's site explorer - you can't easily filter or sort external links by domain. (It also seems a little uncertain whether links refer to www.domain.com/ or www.domain.com/index.php) But it appears that now you can download the whole set of links that Google has indexed and run 'em through whatever kind of analysis you want, including comparing to Yahoo and Google's own link: command.