Google Friend Connect

Want to turn your website into a social networking hub? Google Friend Connect lets you enhance your web pages with a variety of OpenSocial gadgets that add a variety of social features, no programming required on your part. With the gadgets installed, you'll be able to see, invite, and interact with new friends, as well as communicate with existing friends from social sites on the web like Facebook, Google Talk, hi5, LinkedIn, orkut, and Plaxo. Learn more and sign up for the preview release here: Google Friend Connect.

Google Maps Real Estate Search

Here's a good one if you're interested in purchasing a new house. Google Maps has added a Real Estate Search to its advanced search functions. Just click the Show Search Options link to display the Restrict Results list. Pull down this list and select Real Estate then enter an address, and Google will show all avaialble properties near that address. Neat!