Pat: Welcome aboard, glad to see you getting back into fly fishing after all those years. Looking forward to reading about your fishing adventures.
There is a ton of information on this site, spend some time browsing and using the search function, but don't hesitate to ask questions, we will try our best to answer them. I started fly fishing back in the early 80's, I probably spent a year thrashing the water, don't make the same mistake I did, get some help from a local fly shop or certified casting instructor, you will be amazed at how fast they can get your casting straightened out.
YouTube has hundreds if not thousands of videos on fly fishing, fly casting, fly tying, nymph/streamer/dry fly fishing etc. Here are a few ideas for other areas that might help you learn the sport faster:
Checkout the Orvis Fly Fishing Learning Center: How To Fly Fish For Trout, Bass & More | Learn Fly Fishing With Orvis
Orvis also does a Fly Fishing Podcast by Tom Rosenbaeur that is very informative: The Orvis Fly Fishing Podcast with Tom Rosenbauer
Ask About Fly Fishing Internet Radio has some great episodes in their archives, you have to join to listen to the archived episodes, but it is free for a limited time: Show Archive - Ask About Fly Fishing
The Itinerant Angler has some very interesting podcasts: Podcasts | The Itinerant Angler