Google is probably the main sources of the website owners to get visitors to their site. So, earn money. But, what steps have you taken to get your site index by google again once it dropped to almost zero. For example I have around 80000 posts, So 80000 pages in my site. Around 10,000 had been indexed but currently there are only 500 pages indexed. I have taken several steps like, resubmitting, SEO friendly meta tags and linking the site to my other sites which are regularly being indexed by google along with some directory submission. By the way, Share you thoughts and ideas and let me if anybody is interested with any of my sites Mysteryanswers.com , Winthose.com , aid9.com