If you are the original author - you hold all the copyrights of all your works and as an author you have all the rights to modify and use them and enjoy all the rights to promote them across the Internet or you can even delete what you have published - unless you sold all rights of your works to those publishing sites.
I am writing for some publishing sites that pay such as Hubpages, Triond, Wikinut, ExpertsColumn and Allvoices. And I understand that to promote or to market my works outside those publishing sites, I would have to apply some ways to expose them across the Internet through the use of social networks, bookmarking sites, sending them off outside by emailing my family and friends and the other way is by sharing them to my own blog site.
Now, instead of sharing the URL links or summaries of my published articles from those sites - I uploaded the entire articles published from those sites to my blog site - the reason why I did that is - if in case those publishing sites would be closed at least I have saved all what I have published from those sites to my blog site.
My question now: Could I be charged by those publishing sites as "PLAGIARIST" for duplicating my own works and publishing them to my own blog site? I am the original author and I hold all the copyrights of my own works and I have all the rights to modify and use them what I have published on their sites and I have all the rights to promote them across the Internet.
I already published this piece at my own blog site http://wikinutawesome.blogspot.com/