Adding Email Subscription option for your WordPress or Blogger blog increases the readership of your website or blog and you will get more users.
Note that to add a Feedburner Subscription Box, first its prior important you Burn your Feed from Create Feedburner Feed for your Blog
To add a Feedburner Email Subscription box to your website or blog follow these steps-
1) Login to to your Feedburner Account.
2) Click on the Title of your Blog RSS feed.
3) Then Click on Publicize tab and look for Email Subscriptions option on left sidebar. In it click on Email Subscriptions option.
4) Now click on Activate option.
Now your Feedburner Subscription Box is active now
If you are a Blogspot user, switch here for next step to Add Subscription Box to your Blogspot Blog.
If you are a wordpress user, switch here for next step to Add Subscription Box to your WordPress Blog.