We basically have two rooms to work in.
Room 1: PR/business/other less cool stuff
PR: gets money, publicity, all that fun stuff...
business: spends money, records money, keeps team in order, all that fun stuff.
animation: animates (sorta...they blow stuff up...virtually...we have no animation

)
webpage: uses WYSIWYG to create horrible webpages. team84.org *sigh*
button makers: hehe...greatest team ever...i was part of it for 2 years

(not optionally, *sigh*)
Room 2: Building (a woodshop, no less

)
building: researches, designs, makes mock-ups, builds, unbuilds, builds, destroys, builds, changes stuff, gets mad at unworking stuff, builds, builds quickly, builds quicklIER, falls over and dies (sleep deprivation)
Yeah...we have no building sub-groups. People do whatever they want. (People from Room 1 also tend to meander over to Room 2 and build stuff (or, rather, destroy stuff

)