Hi I am using other's articles from articlesbase web site in my blogs in an appropriate way with adsense ads. Is that safe to use other's articles in my blogs? When doing social bookmarking can I submit these articles to digg or any other bookmarking sites to get more traffic. What is your idea abt this?
It's safe, but it won't do you much good. You need to make the articles unique in order for them to help you rank for any useful keyphrases.
Write articles by your own. Do some research on things like "which article will give you highest hits thru Search engines ?"
yes, it is always better to write your own article, adsense ppc will be also higher with unical content
Write the articles yourself. Depending on your purpose this could help you in a number of ways - making your site more valuable in the eyes of the search engines, and making it more interesting for the actual visitors!