I'm curious to find out how white / gray / black hatters here do to maintain good search engine positioning for their sites. I've managed to get top 10 exposure for several sites in a very competitive subject, with mainly 2-word & 3-word keywords. I've only used white hat techniques so far, submitting to the big search engines and a few miscellaneous social sites, all only once. None have been submitted to the same roster of sites. On a slightly different topic, my observation shows that the sites convert better when PPC is active. When PPC was shut off, the conversions plummeted. (Ranking still seemed to remained the same though). What do people here think the best routine is for maintaining good ranking? Do you submit to search engines periodically? Do you maintain it by constantly getting backlinks from high PR sites? (Slightly off topic again), have you observed any relationship between your PPC campaigns and conversion and/or ranking? Many thanks to all respondents!