I had the same question today and wrote to a friend who has been to
the one I'm going to in Somerset, NJ on 2/27. Here's his reply,
although it has been a few years since he's been to one.

===========
schedule:
http://cms.thewoodworkingshows.com/cms/

In addition to the tool manufactures they have vendors, suppliers,
demonstrators, seminars and lectures.(
http://cms.thewoodworkingshows.com/c...2/Default.aspx
)
Also individuals who rent out booth space.
Bring both cash and credit card as they have a number of 'show
specials'.