Social optimization means to promote your blog to different social networks like if your promoting your blog to google+ communities so it means your doing social optimization of your blog. just find right niche on the social media networks and start promoting

You can post you blog in different social media sites like Facebook, twitter, Linkedin, pinterest and Google plus etc.

Hi,
You can follow these step which is given below:
Step1 : Create the account of these site(Facebook, twitter, Linkedin, pinterest and Google plus)
Step2: Create the profile or product or service page
Step3: Fill up all the required field
Step4: After create your social page , you can update or share your service news here.

thanks

thank you all of you guys for making me help its a big idea guys .. thank you

Use Onlywire, sendible, or hootsuite with syndication service to have others share your link on their profiles, thats the best quality and its all automated if you have rss feed.

Google only recognizes your social signals if they are from other people, not your own.

First you should put up good content
Such content that people will love to share with their friends

They start sharing them on facebook, stumbleupon and pinterest

Focus few social media sites to get maximum from them
learn and try different methods..
Then upscale

Social media can make great impact, so make your blog popular on every social media sites, keep sharing new and useful content to gain trust and drive traffic to your blog.
Engage with people related to your niche, it will make a strong social presence of your business.