A few months ago, Google made available an API which you can use to query the social network inherent in the web, by following the “me” links or pointers from one network’s profille to another, as well as the “friend” pointers. By then giving the URL of my web site, I can find all my “other” pages on the Internet, as well as everyone else that I link to or am linked by.

Using this social graph of services, it’s easy for you to find what services you have in common with someone else to be able to link with them there. To make this easier I have a very trivial bookmarklet I can invoke when I’m on any site, which does a lookup via Google Social’s API. To use it, simply drag and drop the “Google Social API Lookup” link to your bookmarks toolbar. Click it when you’re on any blog or profile page, and you’ll do a Google Social lookup. Enjoy!