weddings is one of the hardest as the normal route is to second an existing photographer.. but thats usualy done outside your area.. a wedding tog in your own area knows if he teaches you then you become his rival.
by far the busiest and best UK photography website (that also has a business section) is
Talk Photography™ .. its busy and you ahve people from all parts of photography and all levels from new to mega years experience.. my best advice would be to join there and have a mooch about
