Do rememer never to try and cheat google. It may workin the short run but it won't last. And as Ashish said there is lots of information available on SEO on the web. Just follow it to best you can.
1 thing I have seen is posting relevant links to the content and having a link back from those whom you have linked. As long as the links are genuinely related to both your contents it will help you a lot.
Since it is a very hot topic, you will find a lot of information on it. Make some searches on your favourite search engine. AFAIK all or most of the search engines have a different method of ranking, so it will differ a bit in those search engines.
It is considered the best to follow Google's PageRank as google is one of the most widely used search engine. But, as long as you follow good SEO practises, you will get good results in all search engines.
Also, it depends a lot on what search terms are commonly used by most people. Different terms will give different placement as you should know, so try to use as many relevant keywords in your meta tags. But, those words should confirm to your content on the site.
This is as much as I know, not much.