Submitting the same articles to article directories will not get you penalized by google.
If you post the same exact article on your own blog or website more than once will.
The best thing to do is submit your articles by hand to the best directories. There is actually only about 15-20 or so.....
KRH...There is no such thing as a "google sandbox"...this is a myth! I've done research on this.
Nora let me give u an example: Try googling "how to start a website". (without quotes) Go ahead do it now.
You will see my article about how to start a website listed in the first page about in 3rd place. There are 554,000,000 results (wow). When someone clicks on the ezinearticle link it takes them to my article and at the bottom I have my bio that directs them to my website.
I get alot of traffic to my IM website using this technique. This in my opinion is NOT wasting time!
Paul