Amicus Brief of Online Publishers and Electronic Frontier Foundation, et al.
From the brief in support of CEI and National Review:
"They have an especially pronounced interest because smaller entities like themselves lack the resources necessary to combat SLAPPs, making them more susceptible to their chilling effects on public policy and political speech. And like all Internet publishers, amici are interested in ensuring that the District of Columbia affords full constitutional protection for online speech that is consistent with First Amendment jurisprudence throughout the country."