The more the merrier! And the basis for this opinion? If each article is unique (spin it right) and has two to three links back to two to three pages on your web site the number of significant links (links from a number of different domains) to your web site adds to your website authority as defined by Google.

And if you want to try an automatic article spinner/submitter link building system here is the one I'm using:

1) Every article you submit is distributed to hundreds of sites.

- Most other services only distribute to a handful, which means more articles need to be prepared.

2) It builds backlinks to the web pages where your articles are published!

- They call it Dual-linking system. It is an ingenious concept!

- What it means is the backlinks that you receive from this system carry more weight and authority, which will boost your search engine ranking further.

The system has helped me put new domains on the first page of Google in a matter of DAYS, not weeks.