Hi Surtikart,
I found your site in one of your comments.
You have a good site.
I am part of a small startup
http://www.contextera.com where we built a software that will help your website readers that allows them to share specific text with their social networks. This helps increasing traffic from social media sites like Facebook and Twitter to your site.
We provide analytics as well. This software is free.
Our software is being integrated into new websites that are looking to grow traffic to their sites.
Let me know if you are interested in giving it a try.