how do i improve my page rank???

[marketraise int]

I have been in seo and affiliate marketing for the last couple of months.Initially things were going on fine but later on i found out that i was being banned by forum administrators and moderators alike.All this wasn't affecting my page count on google instead the search results was increasing.But for the last fifteen days there has been a steady decline in my rankings it has gone down from 30000 to 15000.some replies say it is happening due to search engine spiders changing their alogrithms. even though i am optimizing basic seo techniques as mentioned in wikipedia to avoid the decline all my efforts has so far been fruitless.Kindly sugeest something that is effective and sureshot to get over with these problems.
Best Regards,
Shuvayu
MarketRaise Corp.
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