Hier ein paar Bridge-Links:
Bridge Conventions
http://www.bridgeguys.com/conventions.html
Bridge generic defences to weak two's
http:///www.cavendish.demon.co.uk/bridge/weak.two/generic-defence.htm
Defence to 1NT
http://www.blakjak.demon.co.uk/def_1nt01.htm
Good Bad Two No Trump
http://homepage.mac.com/bridgeguys/Conventions/GoodBad2NTCohen.htm
Puppet Stayman auf 2NT
http://members.inode.at/hans.kadletz/Konventionen/puppetstayman.htm
Systeme francaise
http://pcoutant.free.fr/bridge.htm