Postcardware: N. {Shareware} That Borders On {freeware}, In That The Author Requests Only That Satisfied Users Send A Postcard Of Their Home Town Or Something.

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:postcardware: n. {Shareware} that borders on {freeware}, in
that the author requests only that satisfied users send a postcard
of their home town or something. (This practice, silly as it might
seem, serves to remind users that they are otherwise getting
something for nothing, and may also be psychologically related to
real estate `sales' in which $1 changes hands just to keep the
transaction from being a gift.)
-- The AI Hackers Dictionary

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