I was thinking about what software can be offered as services. The immediate ideas are commenting, polling, etc. Well, if you google “commenting service” or “polling service”, many hits show up.

In a way, it works just like Google’s AdSense service. You include a HTML code in your page and that’s all you need to do most of time. Of course, you can sign up for a service then manage the service more closely.

I have turned on a commenting service on this site and let’s see how it works out.