Firstly, I am wondering why you have a website about the article niche business yet you are asking this question?
Second, what do you mean by promote? Do you want to rank with google or get the name out do you can get direct traffic?
You can set up google alerts for some keywords. Once you have done this you can read them every day and comment on forums, yahoo! answers ect... and get traffic that way.
I Strongly suggest investing in scrapebox and getting some strong backlinks to your website and articles. Index your website on directories (dmoz is the best but hard to get a listing). Make youtube videos or steal other peoples to promote your website. Offer incentives to like the facebook page. The list of tips an cheap tricks is endless, be creative and have fun doing it.
hope this helps.