I have a blog running since like 10 months, which have 300 organic unique visitors daily, and now I will establish an eCommerce website on that domain.That means, I will delete all the content related to the blog. And publish new pages related to eCommerce using a different script. Content of the blog and the topic of eCommerce are also quite different.How should i do this change in terms of SEO?What should I expect in terms of Search Rankings, organic hit?
Changing the content of a website completely, and SEO
seo;content
You're starting from scratch. Your content is changing, your markup is changing, and your incoming links are virtually useless since they are now unrelated to your new content. 