Keeping my rank on SERPs

[SaborStyle]

I recently ranked on yahoo, #4 for my keyword!  It has taken 2 months and finally, out of the blue, there I am.  This is my first time actually attempting an SEO campaign.  At first I was listed for my keyword, then i started dropping after a few days.  Then I made a new post, included those keywords, and I got back up to rank #4 again (for the new post).   Why is this happening?  Do I have to make a new post every 4-5 days to keep myself listed on the yahoo first page serps?

[SaborStyle]

Well i have a variety of keywords I am targeting.  I don't try to hit more than 2 per page (i think that is correct).  As of today, even my 2nd post has fallen out of the rankings with yahoo.  I know I can get on there, but it appears I cannot maintain it without continually posting (using my keyword).  I want to get there and stay, at least for the most part.  This business it not a "highly SEOd" business.  Most of my customers competitors are there because they have been there for years.  They only occasionally change their website.

[10JQKAs]

Ah I see, what keyword are your posts targeting? And what keywords are you targeting for your home page?

[SaborStyle]

Well, I have the keyword on my homepage.  This page however has never been in the SERPS.  So randomly last week I wrote a post that was basically just an advertisement.  Most of the posts actually contain some content and pictures.  This one however was written just to "promote" the business.  It was loaded with the keyword (and others).  That page is the one that showed up on Yahoo.

However, a few days later I wrote another article using the same keyword.  This article had content in it.  This article replaced the original "promotion" post.

The page I want them to visit is the homepage.  This has all the goods on it.  When I write posts new content is displayed on the homepage (so it is updated).  But Yahoo is not taking that page.  Perhaps I would have less bounce if I could get my main page ranked.

But having ANY page in the SERPs is good at the moment, I am just confused as to why Yahoo is taking my posts and not my main page.  They are viewing the post as new content (which it is) and not regarding my home page!

Thanks,

[10JQKAs]

Decrease your bounce rate. If users search for "your keyword," click on your site find it irrelevant and immediately return to SERP, your ranking will decrease.

The first thing I would try would be to improve your landing page.