Concert resources are a little hard to find. Constantly checking each band’s Web site isn’t very convenient. That is where iConcerCal comes in.
A free download, iConcertCal is a free iTunes plug-in that monitors your music library (it scans it, so it knows what you like) and generates a personalized calendar of upcoming concerts in your city. It supports searches in the US, Canada, and the UK, includes direct links to purchase tickets, and is available for both Windows and Mac OS X.
Available for iPhone and Android.