Please read it clearly and understand my query Is it possible to published a articles on my blog and then submit it to Ezine article and then to other article direcotories (may be after some modification ) :- Will ezine accept it (due to duplicate content)? If accpted, then Ezine is more authoritative than my blog so WILL GOOGLE PENALIZE ME DUE TO DUPLICATE CONTENT ? How will Google verify that my blog has original content. ?
general answer yes. to ezine articles... no. they only accept unique content. manualy change your article before you post it on ezine articles. the rest of the directories is no problem.
Ezine Will accept YOUR same articles found on other sites... As long as the article you submitted to other directories is attributed to you. So, lets say you submit an article to articlebase under the name JOE BLOE - JOE BLOE must also be the name you are using with Ezine, if your going to submit the exact same article to them.
You should rewrite the article first then submit it to directories, otherwise there's a good chance they will outrank you for the keywords in the article if you don't have a strong site.
Write a post/article... post it on your blog/site. Then write a new article about the same topic completely from scratch. Submit it to the article submisison site. This way what is on your site is never duplicated. What is on the article submission site that links to your post is duplicated between the article submission site and all sites/blogs that republish the article... but the article on your site is unique.
Ezine articles will accept it, as its your website; you havent used an article you dont own. You will NOT be penalized - there is no such penalty at all. Also, due to the backlink from ezine articles it helps google to show your version over EZA. Of course, it also helps to change the title a little, and the summary, but you dont need to go to the extent of a full rewrite if you dont want too. You might want to read up a little bit more on "duplicate content"; http://www.im-wizard.com/clearing-up-the-duplicate-content-myth/
you can publish your article on your site and then submit to ezine without any issue. all you need to make sure is that your blog admin name and ezine author name is the same. if you decide to publish on your blog and then to ezine, wait till the article on your site gets indexed first before submitting to ezine. this way google known your site is the original source of the content and you will not be penalized for duplicate content
Let me put it as simple as possible. ALWAYS post articles first on your blog, then on ezine and then, after simple modifications other directories, but ALWAYS route it back to your blog in the resource box. This lets ezine and Google know that you are the original author and it was on your blog first. Finally, there is NO SUCH THING as duplicate content penalty, so get that out of your head. It is simply a filtering system that filters out whatever content was published second IF it does not have the link that takes people back to the original.
You'd better not do like that. Ezine requires high quality article and the article must be original ones.