Ticketmaster
One of the top providers of tickets for Theatre, Concerts, and Sporting Events. Provides lists of events and ticket booking.

LatestEvents.com 
The latest availability for concerts, theatre and sporting events in the UK and across Europe. Also includes concert packages with VIP tickets, hotels and travel.

Aloud.com
Concert information from Pop and Rock to Jazz and Classical. Book tickets, read live reviews and find entertainment news.

The Way Ahead Box Office
List of events and ticket booking for UK concerts and more.

Live Online
The source for live music cybercasts and online music events. Covers live events and archives full-length concerts previously shown by cybercast.