I have found a new website named how to which allows you to submit your articles and tutorials. This website provides various categories such as Arts & Entertainment, Automotive, Business & Finance, Computer & Technology, Health & Fitness, Home & Garden, News & Society, Reference & Education.
It is not difficult to submit your articles or tutorials to how to. So, if you want to contribute or share with everybody about what you have done, this is a good site for article submission. The content that is approved for publishing must be original and must not appear somewhere on the Internet. In other words, the content of your articles have been reviewed by their employees before sending to their readers. This policy guarantees the readers can obtain quality contents. There are many different topics on how to. But if you love Ubuntu Linux, Computer & Technology section is a good references with free Linux tutorials. However, with about 352 submitted articles since November 2007 the website is still a new one. It needs your contribution. But that will be nice if you submit Ubuntu tutorials. :)