Last year, I published a few posts here in Night Clicks about Article Directories. Back then, I listed a considerable amount of urls of different types of Article Directories with Page Rank. You can check my archives and Article Directories category to find these lists. Although each directory PR might not be updated you can find plenty urls to visit. You can also find a huge list of Article Directories in any major search engines´ results.
Article directories can be very useful not only for writers and webmasters but to anyone who wants to learn more about a specific topic. Trough them, you can promote your own articles and even gain free links to your website or blog.
One of the article directories I frequently visit is Article Alley. I even published a few articles there. Article Alley has so many different categories. It covers topics such as Blogs, SEO, Business Management, Home Business, E-Marketing, Domain Names, Forums, Site Promotion, Technology and many more.
Sometimes, bloggers need to research and read different articles to write posts. If you´re in a sort of writers blockage or need content for your site, you can check Article Directories because they are a good resource for new ideas.
Just remember: Never plagiarize. If you need to copy any content always refer it´s author.