Here are some suggested areas of content for your Wikipedia essay. This is just a starting point. If you have other items you feel are essential, let me know and I'll add them to this list!

What Wikipedia is, how it came to be, and/or how it works.

What reputation it has / how reputable (or not) you feel it to be after personal use and scrutiny
In what specific ways it would be applicable to your target audience.
What fears or unique concerns your audience might have concerning Wikipedia.

Discuss 1-3 specific Wikipedia articles that are relevant to your audience.

Consider the "talk" and "View History" pages tied to each Wikipedia article, if they are relevant for your audience to understand the full context.
Consider the References and/or Sources section of the articles might be useful.
Consider how images or links in these articles might be useful.

Discuss 2-4 alternative sources that your target audience might be drawn to or benefit from.

For each, discuss the strengths and weaknesses they have, compared to Wikipedia.
If appropriate, provide context for how each source was created, who it was written by, who published it, how reputable it is.
At least two of these sources should come from the TCC library.

Possible additional content:

Create a scenario or set of scenarios where your target audience members might need to access reliable information quickly (new parents worried about an infant's high temperature, for instance).
Describe the advantages of Wikipedia vs. alternative sources for finding information in that scenario.

Conclusion elements might include what this close scrutiny of Wikipedia might tell us about other possible uses for this resource, outside of this target audience group.

It might also consider the ways in which online tools are redefining how we view reliability or reputation of sources.
It might also anticipate deeper research questions and needs that this target audience group may have that Wikipedia may (or may not) be able to address.