I started Wikipeding in April 2010 by expanding a stub related to a village in North Lincolnshire (Alkborough). This is an ongoing project. However, my main interest is in the Roman Empire, and specifically Hadrian's Wall. I'm currently involved in a little project-ette to create entries for each of the Milecastles along Hadrian's Wall. It takes much longer than you might think!
First impressions of Wikipeding? There's always more that you want to do, than time you have to do it.
You can focus your searches by using the intitle: parameter. Here's how:
(1) In the Wikipedia search box, type the word intitle followed by a colon, then the word or phrase you are looking for. When you click on "Search," then, you'll be presented with a list of articles that have your search term in their titles.
(2) You can also search for one word or phrase in the title and for others in the text of the articles. For example:
Articles containing the exact expression international airport in their titles.
An even more powerful tool for searching titles is Grep. It lets you search titles using regular expressions, and in the results it lists the titles only.