If you are marketing ebooks with articles, you will need to review the article directories you will use for your submissions. Generally you will use the Google pagerank of a site and its alexa ratings to decide if a site is a top site or not. Google pagerank is the value Google assigns to sites to determine their relevance to searches performed on Google. Alexa ratings are based on the number of Alexa toolbar users who visited a specific site; it does not measure total internet traffic, but can give you an idea of the traffic on a site. The lower an Alexa rating is, the more popular that site is, to Alexa toolbar users.
Based on these, the top 10 article directories submission sites you may want or need for marketing your ebooks are
Bear in mind that this will likely change over time though, if more or less Alexa toolbar users visit each site or Google changes the pagerank of any one of the sites. There are lots of sites on the internet that provide for free, a listing of article directories with their Google pagerank and Alexa ratings on a weekly or monthly basis or so, you may want to use them to keep track of these information.
In addition to the Google pagerank of a site and its alexa ratings, for effective article marketing you will also need to figure out the specific targets each article directory focuses on. And will also have to find out, if the specific categories that are related to your niche are available on each directory. You may preview the top articles in your categories across several article sites to have an idea of popular article topics, you may create for your promotions too. You may also want to know the rules governing each article directory to know how to write for them.
You may submit your articles to the top 5-10 article directories first and then get a list of the next top 30 or more directories to submit to, too. You may get this list for free on the internet also. The more top article directories you submit to, the better your results are likely to be. Your ebook marketing efforts will greatly pay off, if you use article submission software with the promotion of your ebooks. With ebooks, just like any other product you will sell online, you may need to promote with lots of articles consistently for some time to get some good results, trying to do this manually may not be ideal. Article submission software will not only help you to get your articles to more sites quickly, it will also free you up for other tasks in your online business.
Marketing ebooks through articles can be effective if you create the right content, choose the best article directories for your promotions, automate your submissions and consistently track your article marketing results to know where to optimize next.