EVOC: green, especially with the cute tagline, "learning, period"
BREV: green or yellow; slightly shorter than wikipedia
GREP: green; perfectly greppable
GOOG: green; perfectly googlable
PRON: green; perfectly pronounceable
SPEL: yellow or red, given the confusion with "learn dot dot com"
VERB: yellow; the verbification isn't obvious but probably verbable
So all in all I think it's a good name!