Useful Links...

The Place website
Bedfordshire Drama Association
ShowCo (formally Bedford Amateur Operatic Society)
Bedford Dramatic Club
Bedford Marianettes
Bedford Pantomime Company
Carlton Dramatic Society - Wimbledon
Professional Theatre:

Royal National Theatre
Royal Shakespeare Company
The Globe Theatre
The Old Vic
Almeida Theatre Company
Donmar Warehouse
Manchester Royal Exchange Theatre
Chichester Festival Theatre
The Barbican
Milton Keynes Gallery
Milton Keynes Theatre
Stantonbury Campus Theatre
Derngate & Theatre Royal Northampton

Opera:

Royal Opera House - Covent Garden
English National Opera - St Martin's Lane
Glyndebourne Opera
Opera Companies Worldwide

Festivals and Fringe:

BBC Proms
Edinburgh International Festival
Aldeburgh Festival

Theatre Guides:

Time Out - Theatrical Productions in the World's major cities.
Theatre Net - (The Entertainment Centre for London Shows)
Stoll Moss Theatres - THE BEST ONE-STOP LONDON THEATRE GUIDE
What's On Stage - On line tickets
Ticketmaster - On line tickets

Play Publishers / Resources:

Samuel French - Play Publisher
Artsline - Disabled Access to venues
Stageplays - On line theatrical bookshop
The Stage - News. Reviews and Auditions
AmDram - Amateur dramatics information and links
Arts Books - Books specialising in all the performing arts

Playwrights:

Playwrights on the Web

Miscellaneous:

Bedfringe