Are you looking for road rides, or bike paths? I've listed some of the latter on my website at NewYorkRides. Some of the listings may be outdated, so check further before you go! Also, feel free to contact me with any specific questions.

Also, Ken Roberts has a site at Bike Hudson Valley -- Roberts that's chock full of Hudson Valley rides of all kinds. I'm not sure if he has kept it up to date, but I know it's a great Hudson Valley resource.

Good luck!