how can i get my forums ranked on google yahoo etc i done a search on this website http://checkpagerank.net and got these DMOZ.org listed? - not listed. Google Directory listed? - not listed Yahoo! Directory listed? - not listed Domain age? no data. Domain history? - yes (41 results).
Lots and Lots of unique content is a start. If you get users to start interesting or debatable posts then Google will eat it up with the traffic that is generated from them.