How could I rise up my page rank?

[YinDong28]

:huh: My page rank was pretty high in Google (6/10), but currently it's going down to 4/10. Is there any way to rise it up? Also, when I search my site on Google, there is no "Similar pages" showing. Could anyone give me few tips?

[mjULTRA]

http://www.kirupa.com/developer/mx/searchengines.htm