Hi, one of my biggest websites has good ranking on specific keywords (say 3-5 very good keywords and high ranking). I've been top of ranking for a long time, but it seems like some of the rankings are decreasing... My question is - how to make those keywords ranked high again?? It's a bit of a clash here... from 1 hand, I tried not to over optimize those keywords for long time, and it worked, but now it's losing touch. On the other hand, I'm losing ranking... I can get more links from other website on those keywords, but is it the best thing to do now? isn't it over-optimizing? Any thoughts?