It will depend on your target market... identifying your target
market is a crucial step in choosing your advertising media... What
are its demographics and who are you trying to avoid... then list
out what your target market most commonly view...
The most common list are Internet websites, blogs and forum,
flyers, MRT cars, busses, bus stops, newspaper, magazines, TV and
Radio.
If you looking for something general, MRT cars are the best place
to advertise... A major part of Singapore rides an MRT and will
remain there for a while... people will tend to read the
advertisements at this moment... but the down side is most people
will forget...