I have setup a content rich site few days back and is indexed in google. My domain name is exactly what my main keyword is (www .keyphrase.com). I was ranking 4-5 in serps day before yesterday. Yesterday it went to second page and today third. Day before yesterday google was showing 49 pages indexed (site query), yesterday 41 and today just 6!!! No clue why its happening. Its brand new domain, rich content site and well SEOed. Am I being penalized for something or its just blip and things should get normal? I didn't had sitemaps before, but today I added it and hopefully it will help.