Asana is a flexible task manager that people can use for Customer Relations Management, Project Management, and Team Management.
Asana, found at asana.com, is a HTML5 flexible task manager. A workspace is a group of individuals and projects, and each project has a name and a list of tasks. Each task can be assigned to any individual in that workspace.
Some people use Asana to handle customer-relations. Each new customer becomes a project, and any task inside that project represents an interaction with the customer. The project itself would be used to store information about that customer.
Another use is project or team management. Every individual in the workspace is an employee, every project is a project that needs to be completed, and every task inside a project is a part of that project that needs to be done or has been done. The project itself would be used to store information about that project.
Asana can also be used as a bug tracker, a blog, and countless other things.
Asana features a REST API which can be used to create a variety of different extensions. Asana also has a Chrome extension.