Columbia subject headings:
Germany. Bundestag--Constituent communication--Information resources management.
Legislators--Germany--Computer network resources.
Legislators--United States--Computer network resources.
Sweden. Riksdagen--Constituent communication--Information resources management.
United States. Congress--Constituent communication--Information resources management.
Harvard subject headings:
Communication in politics--Germany.
Communication in politics--Sweden.
Communication in politics--United States.
Elections--Effect of technological innovations on.
Internet in political campaigns--Germany.
Internet in political campaigns--Sweden.
Internet in political campaigns--United States.
Online social networks--Political aspects.
Political campaigns--Effect of technological innovations on.
Social media--Political aspects.
Princeton subject headings: