Most 'experts' reckon that writing articles and publishing them in the various Article Directories is a way to get more traffic to your blog.With that idea in my I have created a list of 50 Article Directories where bloggers can submit their articles on just about any subject. Your will find this list on Squidoo in my lens 50 Article Directories For More Traffic. The Directories are listed in PageRank order.
The value of using these Directories is threefold.
(1) They can help produce traffic to a blog.
(2) They can give you good links - from the Directory itself and also from other blogs and websites who reproduce your articles - in doing so they have to include links to your blog.
(3) These extra links can help with improving PageRank.
Article Directories are also a source of material should you ever be stuck for something to post on your blog, though you must follow the rules specified. There is a vast array of subjects.
Have a look at the Squidoo lens mentioned for more information.
Good luck,
Mike.
Further reading:
40 Free Ways To get More Blog Traffic
40 Blog Directories
Over 50 Social Networking Websites