1.   And they are now so pervasive and sophisticated that it has become difficult to distinguish between a lobbying effort, an issue advocacy campaign and a citizens movement.

2.   Business groups have become sophisticated about using boiler-room telephone operations in Washington to create the semblance of a grass-roots advocacy campaign.

3.   Philip Morris U.S.A. in New York said Thursday that it would introduce another advocacy campaign on smoking-related issues.

4.   Since then Sabanovic has become a one-person advocacy campaign for people disabled by the war.

5.   The law is murky on the precise nature of the advertising that the parties may conduct in issue advocacy campaigns.

6.   Their firm, Mindshare Internet Campaigns, in Washington, specializes in running the Internet side of advocacy campaigns.