Hello Bar is a great little toolbar which floats on the top of the website. It helps in engaging more users in your blog or website. Using hellobar.com it is fairly easy to create a hellobar for your site. They will provide you with a code you will have to paste the code in the section of your site which is fairly easy for even beginners. To relieve myself of the disappointment of not being able to buy it, the other day I was experimenting with HTML & CSS to see if I can actually create a hello bar of my own. To my surprise I was able to create one which looks just like the original one. Here's a demo.