I just came across a website named WebsitesLike and WesitesLike is a search engine which allows you to view similar, related or alternative websites.
What you can do is just key in your website, then you should able to find those websites that have similar or related contents with your website. Also, it is works on keyword too.
According to WebsitesLike, Blogging Secret is similar to Phpmyvideoblog, WordPress, Linkwithin, Blogsome and etc.
What are you waiting for? Try WebsitesLike now!