Is your site facing Google Dance? Try to check again that is your site get index by Google ?
Sometime people get rank with their facebook and even the forum post they did which is not they wanted.

just wait for Google crawl

For your Blog if you have created Facebook, Twitter and Google Plus profiles they will appear on the first page of Google if you search for your Blog name.

What i believe when working on social media target things other than your main website name or such..! don't target your keyword as they will get better ranks than your blog. What you can do is make phrases for facebook pages. which usually get lots of fans and rank good try to target traffic rather than the keyword on social media..!

Although Google uses the Panda algorithm, Google still counts backlinks. So you need to add quality baclinks to your page(s) or website(s) for the top ranking at Google.

Social pages are ranked easily AT THE START mainly because of their popularity and how much trust Google places on them. However, they will decline over time because your domain will overtake them. Just give it time.

Seems to me you are either building to many links to your homepage only/possibly not using enough keyword variation, or a combination of the two.

It is much easier to rank a Facebook, YouTube or Twitter page than your actual domain initially. Ranking extensions of those big, popular domains has been made easier by Google because it is familiar to them.

Once your blog develops and gains good content and is well optimized, you will start to see it gain more credibility and it will probably rank higher than your page. It takes quite a lot of time, effort, patience and ethical means to get ahead Good luck.

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Now Facebook also building social search engine for Facebook users so,Its mean Facebook also trying to compete with Google for searches.