There are many different ways to widen the audience of the people who read your writing. One way is to be involved in many different social networks, and cross post about similar interests. If you write articles on AC, Hub Pages, or other places this may give you opportunities to share you thoughts with a wider range of people. When making a post in a community about a topic you've written an article about, always include a link.
Regardless of where your work is seen, some articles or posts will get more interest than others. Some of that has to do with how your work shows up in a search engine, and many factors such as good use of keywords may play in. Other factors such as the popularity of a topic will play in.
Here's a good example. I wrote a couple of silly little articles about Halloween related topics a few weeks ago. I put some time into sharing good ideas, but I can't say that either piece was very weighty. Both received about five hundred page views within a day! One reason may be that it was the right time of year for people to be interested in articles about Halloween.
The first article was about "Fun Things to do for Halloween in Seattle" . I didn't expect it at first, but sometimes I get a lot of views when I write an article that is based on a certain locality. In the article I included more unique ideas as well as standard ones. For instance, Seattle has a number of great Ghost Tours- which would be a fun and spooky activity for a group of people at this time of year.
The second article I wrote had even more views than the first, and was about "Cool Ideas for Halloween Costumes with Thrift Store Finds" . If you have a look you'll note that I included lots of different types of costume ideas. Including an array of related topics that fit key words and concepts may draw more viewers. "Halloween", "Costume Ideas", "Pirate Costume", "Greek Goddess Costume", "Costumes for Kids", and "Costumes for Adults" could all apply as keywords. An underlying concept that may draw more attention is the opportunity to still have fun, but do it on the cheap. In this economy many people are struggling to take care of basic needs, and may not have much money for things like entertainment. Those people effected will all be looking for less expensive ways to celebrate than they may have in other years.
Paying attention to these simple things made the difference between 50 page views over time and 500 page views in a day.