More than 20 different fly-fishing knots—everything from the Bimini Twist to the Blood Knot. Knots can be chosen by name or by use.

Each knot is detailed in step-by-step animated video with narration by Orvis tackle guru Steve Hemkens. Videos may be stopped and rewound, or played at any desired speed.

Basic fly casting, from how to hold a fly rod to the double haul. Videos of Truel Myers, director of the Orvis Fly-Fishing Schools, demonstates the top 10 fly-casting mistakes and how to correct them on video.

Ever tried to get to the right web page to buy a state fishing license online? Now you have a quick link to fishing licenses in all the states, plus all of their regulations, right on your phone.

Pick a fly by name or by type. Choose from the top 100 trout flies and the top 50 saltwater flies.

Each fly has an image for identification, plus description, tips, when and where to use it, and how to fish it.

You can search for recommended flies by type, season, hook size, color, or region, or use a combination of search terms to narrow down your choices.

More than 300 of the top fly-fishing destinations in North America, Central America and the UK.

Real-time fishing updates, flows for rivers, and tide charts for each saltwater fishery on your iPhone or iPod Touch.

Hot flies, rods, lines and leaders to use, fishing tips,
and outlook for the next week for each fishery.

Hatches, baitfish, and water temperatures.

Confused by any of the lingo? A glossary is available on each page. Looking for a particular fly, knot, or cast? Just use the search, available on each page.

The Orvis Fly-Fishing Podcast with Tom Rosenbauer. Easily the most popular and informative podcast in the industry from one of fly-fishing's top experts. You'll get answers to hundreds of questions on every aspect of the sport from tying a simple knot to reading the water to find the best lies for trout. Access to over 100 episodes of fly-fishing tips and hints that continually get four- and five-star ratings.

Get right to the Orvis fly-fishing Facebook page, for hot tips and discussion of all things fly fishing.

Find out what's going on this week at the Orvis fly-fishing blog, from articles on fishing technique to hot fishing spots to the latest in fly-fishing videos in the Friday Film Festival.