Consider reselling "live chat" (live support) subscription services to your customers for additional recurring income. Only a few lines of HTML needed on customer sites to show operator "online/offline" images (which can be customized). Operator console and chat 100% web-based, and can be configured so your domain name appears. This chat can be branded with colors and logos of your choice, which gives the appearance that it's your live chat service. The URL bar can say something like: chat.yourbusinessname.com Entirely white-label, and no minimum resell price. Your customers can manage their own chats (via your customized operator log-in page) or you can manage their chats for them. Find out more at: http://www.gotlivechat.com/reseller-whitelabel.asp