Recently, we covered research showing that nearly half of open source developers are focused on applications for delivery in the cloud. Software as a Service (SaaS) applications are increasingly either employing open source or are built entirely on it. And all of this adds up to an increasing premium on web development skills and good tools for web development in the open source community. The good news is that there are many  open source tools to help you with your web project, and given the costs of web development environments and the like, they can save you a lot of money. Here are over 15 good examples of tools and tutorials, with a few that we've covered before appended at the end, in case you missed them.

Opera, though it's a fine browser, is closed-source - which is one reason why most open source advocates are still running Firefox as their preferred way to access the web. But a new tool from Opera, named Dragonfly, is open source (code under a BSD license).

If you do web development, it might tempt you to fire up an Opera session from time to time.