"1. Strong copyleft
Choosing a strong copyleft licensee (e.g., GPL) ensures that the
source code of all modifications, additions, or derivatives of your
work will be disclosed (eventually). In case of the GPL,
derivatives are likely to include also other components licensees
link your program to and distribute your program with.
"If your project uses a strong copyleft license, most
enterprises relying on licensing revenue for their business are
unlikely to use your software as their own software linking to your
code could be subject to GPL obligations. In fact, many companies
have prohibited the use of GPL interally for this very reason. Your
code is more likely to be used by companies requiring the software
for internal use, or companies that do not rely on license fees for
their business but instead make their money out for example the
provision of IT services."
