1% Rule
I found an interesting article on the amount of people that actually participate in web content:
Guardian Unlimited Technology | Technology | What is the 1% rule?
<p>The summary would be something like this. For every hundred people who view a social site (eg wikipedia, blogger etc), 1 will create content, 10 will comment or add content, 89 wil just read. I hope this makes those of you who worry about the lack of comments or input on your blogs makes you feel a little better. </p><p>So, like Lucy Mail said in this blog post, don’t worry about the fly catching audience, just power on
</p>