A blog directory, web directory or link directory is a list of websites that specialize in linking to other web sites on the World Wide Web depending upon their niche.
Blog directories are great for both the webmasters/blog owners and readers who are lookingfor new sites to follow or research. These directories provide “backlinks” to a blog. This type of linking is vital to the growth of your site because search engine like Google gives more weightage on sites with the greatest number of backlinks.
After the successful launch of your blog to the web world, the next step is to promote it to gain a solid visitor and reader base. Submitting a blog to the popular blog directories is a good way to gain blog popularity. Blog directories are also SEO friendly; they put your blog searchable by almost all search engines.
Submitting your blog URL to these directories may sometimes require registration and to place reciprocal link on blog home page for validation. There are many paths to building links, such as link baiting or blogroll-link swapping, but very few are as easy to implement and cost effective as submitting to blog directories. And good link juice makes for a growing blog.
There are many blog directories are on the web but the given list of directories is chosen because of high PR and low Alexa Rank.
The above listings are a glimpse inside the large and vast world of blog directories and the valuable inbound links that you can build for your blog and your business.