There are many local organisations, including Butterfly Conservation's Branches, that run moth events and co-ordinate local recording.
Going along to events and getting involved with such groups is an excellent way to improve your knowledge of moths in the company of like-minded people. Below are some links to help you find out about moth recording in your area. In addition, every county has a County Moth Recorder, to whom moth records should be sent.
Butterfly Conservation local Branches
Argyll Moth Recording Group
Bedfordshire Moth Group
Berkshire Moth Group
Caithness Moths
Cheshire Moth Group
Cornwall Moth Group
Derbyshire & Nottingham Entomological Society
Devon Moth Group
Dorset Moth Group
Essex Field Club
Glamorgan Moth Recording Group
Gloucestershire Moth Distribution Maps
Hampshire Moth Group
Harrogate and District Naturalist Society
Hertfordshire Moth Group
Kent Moth Group
Lancashire Moth Group
Montgomeryshire Moth Group
Moths Ireland Project
Norfolk Moths
Northamptonshire Moth Group
North West Wales Lepidoptera Database
Offwell Moth Group (Devon)
Pembrokeshire Lepidoptera
Shropshire Moth Group
Somerset Moth Group
Staffordshire Moth Group
Suffolk Moth Group
Sussex Moth Group
West Midlands Moth Group
Yorkshire Naturalists Union