It has a nice explanation of why folding proteins is important, including creating or finding proteins for medications, biofuels, or why certain things work in certain ways. The cures for AIDs and cancer might depend on it, so it's kind of fun to see it in a form where anyone can jump in and start pulling hydrophobic and hydrophilic amino acids and other structures around. Mutating links is fun, too. *laughs*
Anyway, I found the tutorials to be a lot of fun.
Aaaand I'm jumping into getting Jet's class to build electromagnets in their next lab... so I'm in the Mood for Science! (bwaahahahaha! *zzzzzt*)