Link, article or contentlink exchanges?

What is in your opinion the best way of linking for SEO?

We do a lot of article exchanges lately because we believe this is the best way for ranking high in the search engines. I was very curious if the time we are spending on it is spent good. It sure looks like it does.

For quality link, article or contentlink exchanges with the following sites you can always PM me.

http://www.onlinegamblingpal.com
http://www.casinoshighrollers.com
http://www.wingrotebedragen.nl
http://www.gokkastenonline.eu
http://www.casinogokken.net
http://www.casino-gokken.eu
http://www.casinogokken.eu
http://www.online-gokken.eu

Hi HVDB:

I think a combination of all linking methods, unique and fresh content and a easy to navigate website its the best recipe for get high rankings on serps.

Regards.