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Ok Roland, My main guess that the position is changing due to the type of content that your blog is posting. You may have had a more relevant article on the top of the front page (it was likely the only article when you first posted). Now as you write more and more posts, you older articles move down and the relevancy of your page content changes. I suggest you do the following: Make sure that the home page of your blog only shows a summary (excerpt) of the article rather than the whole article as we do not want to duplicate our content across multiple pages. You can see an example on my blog. Your title is very important, so rather get to the point and mention what you do right away. I suggest: Airline Games | Air Traffic Control Games (ATC) | Best Flight Sims I see you are using the All In One SEO Pack, I suggest you remove the keywords tags altogether as they are more a waste of time and do not affect your SEO results at all. You are a new blog so I suggest you write more quality content. Three articles is just not going to cut it just let. If you want to rank under "online flight sim" then you need to write a post that highlights all the top online sim games and back up your opinion with great facts. Try not to make your post names to similar: "The best of the airline games!" & "The History of Airline Games " are very similar. Are the 7 social media buttons necessary for a new blog? Rather stick to FB, Twitter & Google +1 for now until your blog becomes more popular. When you first published you blog I am guessing that Google's FreshBot (A bot that looks for new content)  was giving your pages priority as they were new and fresh (this is why we post new content). A FreshBot listing can usually puts you way up on page 1 for a few days until the Google Deepbot comes along and puts you in your rightful place.The easiest way to tell if your listing is a temporary fresh listing is to look and see if there is a time stamp on the listing (eg: Posted 2 days Ago), if there is then it is likely that Google is giving that page priority for being fresh. So do not be discouraged, rather keep writing good content and eventually your organic listings will get stronger. There are many many signals that affect your ranking, but if you do the basics your site can perform well.

Thank you for your help. It is a word press site- don't know if that makes a difference? It is www.airlinegamesatc.com Thanks again!