Using
Indirect Testimonials!
They're Free, and They Sell!
by Nat Bodian
Testimonials
don't have to be direct quotes to have powerful confidence-building and
sales appeal. Often they can be indirect or implied and still pack a
powerful sales punch. For example, a textbook publisher promoting a
particular text can list names of leading universities, which have adopted
that book for their classrooms. The implication is clear, as it would be
for companies promoting a product and then listing Fortune 500 companies
already using their product. In contrast to celebrity endorsements, these
do not require permission, and you don't have to pay for them.
(Taken
from Direct Marketing Rules of Thumb)