Strengthen the website links
 

Google PR is important link. Of course web site also nots allow to ignore, link PR high, their site PR will also along with it enhancement. You can find some PR higher station to do link, if you don't have the popularity of words, that you can also go to buy some PR high link to hang in his own web site, but pay attention to, don't go to buy black chain, the price is cheap, but if the Google check it out will be in addition to the right, and even into the Google sand box, then regret late.

Only niche related links can help.

Getting highly ranked sites to link to yours will improve your ranking more than getting many poorly ..