Hi Teresa, besides taking mellowmasher's advice above, here's where the problem is. Your ads (at least the ones I've seen here) have no credibility. Why? You don't give nearly enough information. You don't say whether the articles you're selling are from a PLR source, from article spinning software, or that they're your own handwritten articles. You don't give links to samples of your work. You don't give any options for pricing and packages (what if I want 2 articles? 5 articles? 50 articles?). You don't mention how many words there are in the article(s). You don't offer any information about yourself, or websites to check.
You may be a superb source of articles, but until you provide enough information, you're going to go unnoticed.
There are thousands of places to get articles cheaply. What sets you apart? Why should someone buy from you rather than buy a premade package of 1,000 articles for $9.95? (I'm not directly asking you these questions, just giving you things to think about). You need to answer all these questions before people ask them if you're going to drum up any business.
Good luck!