In SEO, Link building by Article Directories are Spamming. All SEO people thinks this is worthless activity for link building. Article directories may change those submission guidelines for conserve position in SEO field.
This is the most complete list of link building strategies & tactics on the Web, period. I created it because the best strategies are never found in one place, and the most complete lists are completely outdated. We create content that is not only well optimized and grammatically correct, but also is interesting to your readers and potential customers.
They should add some strict guidelines and should manually approve the articles which are 100% copyscape passed.