Asana

This fall two task-management services, that want to smash Outlook as an enterprise task management standard, have appeared. These are Salesforce's Do.com and Asana. Both services are so similar that many observers remembered the story Chatter vs Yammer, when Salesforce launched the free clone of the promissing start-up. But why  have all noticed this Asana, while there are many others online task-managing tools? First of all, this service was created by Facebook co-founder and architect - Dustin Moskovitz and Justin Rosenstein. Secondly, Asana is so simple and beautiful and works so fast, that it can impress even experienced users who have seen a lot of web-based applications. And third - Asana is free for teams up to 30 users. Telling about its features doesn't make sense - it is easier to try.