Indianapolis has a great public transit system - better than a lot of cities we have seen. IndyGo.net is run by the Indianapolis Public Transportation Corporation.
One thing we really love is that IndyGo offers Late Night Taxi Vouchers for companies who have employees that work from 11pm-6am. The vouchers cost $5 and allow the employee to take a taxi home from work when the buses aren't running.
IndyGo makes great use of social media and if you follow them on Twitter you can see what buses are late. It's extremely useful.