First of all there is the rodmakers email list which you sign up for at
http://www.canerod.com/rodmakers/
Kind of an edited archive of the list is here. I found it very useful.
http://www.bamboorodmaking.com/html/tips.html
Then there is the Classic Fly Rod Forum at
http://clarksclassicflyrodforum.yuku.com/directory
Next is the Rod Building Forum which has a bamboo section, not as active as the two above
http://www.rodbuildingforum.com/index.php?act=idx
Finally there is the Bamboo Rod Room, which doesn't have a lot of traffic
http://thebamboorodroom.yuku.com/directory

Here is a good series going through all the steps of building a rod
http://globalflyfisher.com/rodbuilding/bamboo1/
http://globalflyfisher.com/rodbuilding/bamboo2/
http://globalflyfisher.com/rodbuilding/bamboo3/
http://globalflyfisher.com/rodbuilding/bamboo4/
http://globalflyfisher.com/rodbuilding/bamboo5/
http://globalflyfisher.com/rodbuilding/bamboo6/
http://globalflyfisher.com/rodbuilding/bamboo7/

Another good source is Power Fibers which is an online magazine published as a PDF every 3 months.
http://www.powerfibers.com/

If you want to practice your Italian (actually articles available in English)
http://www.rodmakers.it/

How to make a planing form is here
http://www.thomaspenrose.com/form01.htm  and following pages,
but also see the alternative I actually used at
http://www.thomaspenrose.com/form07.htm

The hinged self-leveling sanding block and a lot of other good stuff is at
http://mysite.verizon.net/vzn05zew/rodbuild/main.html

RodDNA  a rod taper  design and analysis program by Larry Tusoni
http://www.roddna.com/roddna.html

HexRod a rod taper program by Frank Stetzer
http://www.hexrod.net/

Deneb Puchalski of Lie Nielson shows us how to sharpen plane blades with a water stone
http://www.youtube.com/watch?v=yzeAsX-09o4
Also how to keep the stones flat
http://www.youtube.com/watch?v=HIWsK5tDSfk&feature=related

The Andy Royer, the guy who sells the bamboo is at
http://www.bamboobroker.com/index.html

The Little Machine Shop, the source of parts and accessories for mini lathes
http://littlemachineshop.com/


The two books I recommend most are
Handcrafting Bamboo Fly Rods by Wayne Cattanach and
Fundamentals of Building a Bamboo Fly Rod by George Maurer and Bernard Elser.