PADDLING:

NYS Boater's Guide - Rules & Regulations
Public Navigation Rights in New York State
PADDLING.NET - info, forums
Canadian Canoe Routes - info, forums
Mohawk River Paddling Guide & other local places to paddle
Nautical Booklet Charts Atlantic Coast includes Hudson River
Reflections on the Outdoors Naturally - Blog & Resources for the Canoeist.

GENERAL OUTDOOR:

Leave No Trace - Low Impact Backcountry Use
NYS Dept. of Conservation - land use; campground reservations; etc.

PADDLING CONDITIONS:

Hudson River Tides
Up-to-date River Levels
Some NY Water Temperatures
Weather Radar
Weather Forecasts for NY State

WINTER:

Peakbagging Conditions - High Peaks, Catskills & More
Lake Placid Area Winter Conditions
More Adirondack High Peaks Area Winter Conditions
XC Ski Center Reports
NY Snow Depths
Northeast Snow Depths
Recent Snow/Rain

CLUBS:

Schenectady ADK Whitewater Schedule
Adk. Mtn. Club - Albany Chapter Paddlers
Hudson River Watertrail Association                                  Dragon Boating
Northern NY Paddlers                                                                  NY Sea Dogs
Adirondack Pirate Paddlers - kayak tourers.

CANOEING TECHNIQUE:

Bill Mason's Path of the Paddle Videos - still the best.
Australian Canoeing - very good stuff.

KAYAKING TECHNIQUE:

Kayak Paddling - good fundamentals & more, nice graphics.
Australian Canoeing - I have some minor beefs but overall very good explanation of basic kayak strokes.