When you share a post to Facebook or Google+, they display a summary of the post and also a thumbnail if available. Twitter has also come up with a similar solution called Twitter Cards.Twitter has come up with different types of Cards and this tutorial will help you in adding a summary card to your Blogger posts. 
It has been a long time since @Twitter released the @AnyWhere Developer Tool. AnyWhere allows you to seamlessly integrate Twitter into your site using a few lines of JavaScript. You can read more about it at @AnyWhere Developer Page. Tweet Box is one such @AnyWhere Application, which allows you to add a 140 char Tweet Box onto your blog.
Here is a screen shot of how the Tweet box appear on my Previous Post.
The Official Twitter Tweet Button has 3 default styles(2 of them with a counter and one without) . The Button works with JavaScript and is not fully Customizable.This post is for all those who want to customize, the tweet button and change it into a simple Text link. The output will be a simple HTML link with all the features if the Tweet Button(excluding the count)
