
Oggchat is a “live” website chat solution that integrates with Google Talk and Gmail.

Simply put. You sign up for an account (Free and Fee based) and set some parameters. Then you paste the Oggchat code into your website and start offering realtime solutions to your customers.
I suspect one drawback would be that Oggchat integration is only available through Google Talk/gmail. So any website organization that isn’t currently using Google will need to create a Google account in order to utilize the Oggchat service. (I am not 100% sure on this as I have not signed up for the service and there is no indication of integration with other IM clients.)
Oggchat says:
OggChat is unique among live chat solutions. It incorporates a customizable client chat window for your website but routes all chat requests to your operators’ GMail accounts. No additional client software is required and you can chat right from GMail or from your Google Talk client.
I can say this though…Gmail does offer awesome features for small business/blog writers. Creating a Google account in order to utilize Oggchat couldn’t hurt.