Music Plug - Music news & concert tickets
Bands In Town - Local concerts and live recommendations
StubHub - StubHub is the world’s largest ticket marketplace with tickets available for over 10 million live sports, music and theatre events in more than 40 countries.
Songkick - Songkick tracks your favorite bands so you never miss them live.
SeatGeek - Buy Event Tickets is an excellent application that helps you to buy and resell tickers to thousands of sporting events including MLS, NFL and NHL, concerts, festivals, and theaters shows.
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.