SimpleGTD is another in long list of online task management tools that attempt to adhere to David Allen's Getting Things Done system. On the surface, it's incredibly appealing; the makers of SimpleGTD have used Ruby on Rails to create a system that is stripped of the extraneous gunk that seems to litter other GTD tools, and instead present an incredibly bare-bones GTD environment. For those of you who prefer text files or paper lists, this may well appeal to you.

However the true value of using an application (be it a web application or a local one) to manage your tasks, particularly when following the principles of GTD, is the ability to see your tasks grouped by either context or by project. In other words, while you want one list to tell me what you can be working on right now based on the context you're in, you need another list showing you everything that needs to get done for a particular project.

SimpleGTD does not offer this project-based list, and it's a real shame. Without the ability to see this alternate view of your tasks, it's hard to recommend this tool for any serious GTDers. Otherwise, it's a very slick implementation.

SimpleGTD is free to use, but the makers suggest that regular users make a small $2 donation.