If you are a blogger then you must be having a Facebook and Twitter page of your blog. You can show the people who Like your Facebook page by using the Facebook Like Box. And if you wanna show your Twitter followers then you can do that too.
Twitter Fans is an easy to use Wordpress plugin which shows your Twitter followers in the your blog. Twitter Fans lets you display your Twitter followers in the sidebar as a widget just like Facebook's Like Box (previously, fan widget).
The best thing is that you do not need to share your Twitter password too. It just need your username. Also it lets you change border, background, and color of the widget.