What?

http://www.collab.net/services/training/agile_e-learning

http://www.slideshare.net/dimka5/introducing-agile-scrum-xp-and-kanban

 

Which?

All free, ordered from simple to complex:

scrumblr.ca/xxxx // board only. you need to give the board a name, public

scrumy.com/xxxx // simple timed columns.  you need to give the board a name, public

targetprocess.com/product/scrum/  // timed columns.

pivotaltracker.com // not only time, but also most necessary things.

 

How?

Pivotal-Tracker is complicated, here is how to use it:

https://www.pivotaltracker.com/help/gettingstarted