Links
Here's a selection of fly fishing links. This list is in no sense comprehensive, but it may introduce you to some resources that are new to you.
Manufacturers, retailers
Note that you may be able to get a discount (typically 10%) from some of these retailers if you are a member of the Fly Dressers' Guild.
Have a look at the local waters section if you want the web addresses of Sussex, Kent or Hampshire fisheries.
Fishing Clubs and organisations
Fly Dressers' Guild - The Wild Trout Trust - The Angling Trust (Ouse Valley is a member)
Bewl Bridge Fly Fishers' Club - Sussex Fly Dressers' Guild - Tunbridge Wells Flyfishing Society - Crawley Fly Fishers - Hastings Fly Fishers Club
Fishing information
Orvis_Knots - Animated Knots - The Nail-less Nail Knot - How to Tie the Perfection Loop - The Easiest Blood-Knot Method - The Davy and Double Davy Knots - Ultimate Guide to Fishing Knots
Flylines and the AFFTA Standard: What’s in a Number? or When is a 6wt line really an 8wt line?
It's All in the Wrist: Fly Fishing - an overview (US-oriented) for the newcomer to fly fishing, with links to further resources (thanks to Dylan at Study Map). And Fly-Fishing Resources for Kids and Beginners contains some useful beginners' links (thanks to Patrick).