One of the secondary keywords on my website used to rank me around 10-20 on google, but it seems like after doing a $5 social bookmarks gig in hope to boost it to the front page, it dropped me around the 40 mark and it's been floating there since. At least, I think that's what caused the drop as it's the only thing I really have changed on the page the keyword's on. I'm banking on this keyword since my main keyword has dropped past the 500+ mark for SERPs. I had the same social bookmarks gig target this keyword as well, and the bookmarks actually increased its rank around the 80-100 range, but after a week of dancing around, it disappeared completely. My main niche keyword has become harder to rank for over the years and I haven't been updating my website for these changes. I have a handful of keywords on this site, each ranking between 1-20 SERP on yahoo and bing, but I really need the traffic from google that I'm just not getting anymore. The website is almost 3 years old too, if that affects anything. I just optimized my site last night with Yoast's SEO for Wordpress, and I guess what I'm trying to ask is, how do I move forward? Should I also re-index my pages after the SEO? Thanks in advance.