Here in the UK at Christmas, if you have SO MANY friends that indivudual greetings are out of the question (time, money, etc..), tradition says you place an advert in the Times of London saying something like "Lord and Lady Tel of The White House, Clinton in the Shires, convey warmest Seasonal greetings all their friends and anyone else who cares to acknowledge they exist".
Well Dave, you're going to have to be my Times of London. With so many Newbies arriving at all hours of the day and night it is hard to keep pace. So, on the cheap, may I say a big WELCOME to all you Newbies. You may find some of us chatty, controversial, or just plain weird, but we are all (mostly) harmless and very enthusiastic about our gardens. Enjoy.