Trello is a collaboration tool for teams which organizes pending tasks and keeps a big-picture overview on a project’s remaining tasks.
The service is innovative due to its special use of configurable lists (that can be named at the discretion of the user). Each list contains cards describing the tasks required to be performed; these cards can be dragged from one list to another, have people added or assigned, and the changes made to them are automatically synchronized everywhere if there are other opened browsers displaying them.
According to the Compete.com data, the site gets at least 10’000 unique visitors per month.
Trello was launched in September 2011 by Joel Spolsky. Joel is a rather popular figure whose beginnings can be traced back in 2000 when he founded Fogcreek together with Michael Pryor. Since then he has launched a range of successful services, including FogBugz and StackOverflow. In September 2011 the Wired magazine named Trello as one of “The 7 Coolest Startups You Haven’t Heard of Yet”.