A method and apparatus for allowing for the exchange of tasks, over an instant messenger (“IM”) infrastructure, are disclosed. An IM application, running on an electronic device, may allow creation, assigning, tracking, viewing, exporting, importing and managing tasks. IM applications may include, but not be limited to, stand-alone applications, browser plug-ins, on-screen widgets and gadgets, PDA and cellular phone modules, server-sided applications rendered on a client machine, etc. Personal Information Management (“PIM”) applications may use IM infrastructures to exchange of tasks or task information. Project management applications (“PMA”) may be used to define projects, containing tasks with complex sets of rules and inter-dependencies, and leverage IM networks for disseminating these projects and tasks among users. Tasks exchanged on an IM network may be imported into PMAs and PIMs. Tasks may be exchanged in a peer-to-peer IM network, which may span multiple IM service providers. Tasks may be transported in XML data structures which may contain data pertaining to users for whom tasks are intended, the progress made on tasks, documents attached to tasks, etc. User roles and privileges may be defined within tasks structures such that some users are the assignees of a task, while other users may only view task progress and be notified of milestones as tasks are worked on. Users may create task groups and communities, allowing them to control who may assign tasks to members of the group.