Ben Burbank invited you to chat on iGoogle. Once you accept the invitation, you can stay in touch using Google Talk. It's free and there's no download required--just go to iGoogle, your personalized homepage and accept the invitation (you'll need to sign in to Google or create a Google account if you don't have one).
What is iGoogle iGoogle is your personalized homepage on Google.com. Pick and choose from thousands of Google Gadgets to personalize your page, including: games, news, photos, as well as tools like weather and stock. You can also chat with your friends on iGoogle. It's all free and available from any computer anytime. Give it a try at www.google.com/ig