Editing Wikipedia

We have all heard numerous times from teachers that Wikipedia is not a credible source, because anyone who desires can edit the information on its pages. However, if I were asked by an instructor to edit a Wikipedia page, I'd feel a little nervous about it. I am by no means an expert in any field. I'm not full of specific, detailed knowledge about any specific subject matter. Unless I wanted to do a lot of research on a topic, I wouldn't feel by any means qualified to edit a Wikipedia page which others may then rely on for information. Perhaps my lack of desire to to edit any page lends some support for the argument made by Jonathan Zittrain in "The Lessons of Wikipedia": that Wikipedia is actually quite a reliable source. Why would people want to post false information in the first place?

However, if I were forced to edit something on Wikipedia, I think I may choose the page on Facebook. Facebook is a website I easily waste hours on everyday. Though I don't know much about its creation or operation as a business venture, I know a lot about how to use it and what it is typically used for. Facebook is a topic that isn't scientific; accurate information can be drawn simply from experience with the site, something of which I have plenty. This is much different from an article on something like black holes or the French and Indian War, topics that I am far withdrawn from and which can really only be described in terms of factual scientific data or historical record. If most people felt like this, and simply wanted to stick to what they know when editing Wikipedia pages, it seems that its credibility would be reduced to hardly being an issue at all.