Can I write articles about Physics, to submit in article directories for backlinks for my cellphone website? I know that cellphones and physics haven't got anything to do with each other, but can I write Physics articles and submit them in article directories with a backlink towards my site at the end of the article, in the resource box below? Is it against any TOS or something?
I think it mostly depends on the quality of your site. Of course there might be some variations between the article directories, but I don't see any problem with that as an idea. Still, I don't know can you get any value out of it. The article marketing gets it's most power from people who are getting you article from the directory and putting it to their own website. I don't know do those content consumers use content with highly irrelevant links on it.