Subject categories

The subjects includes:

AH: art & humanities

BF: business & finance

BS: beauty & style

CE: consumer electronics

CI: computer & internet

CT: cars & transportation

DO: dining out

EM: entertainment & music

ER: education & reference

FD: food & drink

FR: family & relationship

GR: game & recreation

HE: health

HG: home & garden

LB: local business

NE: net & events

PE: pets PG: politics & government

PP: pregnancy & parenting

SC: society & culture

SM: science & math

SP: sports

SS: social science

TR: travel