Astroturfing vs Front groups

What is the difference, when does each apply, and can both be at work at once.

Structural

Astroturfing

Manufacturing the appearance of spontaneous public support for a position, through paid letters, staged demonstrations, or fabricated accounts, so that an interested party's campaign looks like a movement.

Structural

Front groups

An organization created or funded by an interested party to speak in public under a neutral or civic name, so that the party's message arrives with someone else's credibility.

The differences

AstroturfingFront groups
What is fakedThe crowd: many voices that appear independent and are organized or paid.The organization: a body with a civic or expert name that speaks for a hidden interest.
ShapeHorizontal. Letters, reviews, accounts, comments, marchers.Vertical. One named institute, coalition, or committee with a logo and a spokesperson.
What it borrowsSocial proof: "ordinary people feel this way".Authority: "an independent body has concluded this".
Classic caseThe 1985 "generated mail" on insurance legislation that gave the practice its name.The tobacco industry's research council of the 1950s, presented as independent science.
The counter-moveLook for sameness: identical phrasing, synchronised timing, new accounts.Look for the funder: who pays, who sits on the board, who writes the reports.
The tellToo many people saying the same thing in the same words.A name that sounds like a university and an address that is a law firm.
An example of astroturfing

A regulator's public comment period receives two million submissions opposing a rule. Analysis finds that most use one of a handful of templates and that many are attributed to people who never sent them.

An example of front groups

"Citizens for Sensible Energy Policy" publishes reports and testifies to legislators against a conservation measure. Its funding comes from a single utility company, which is not named on its website.

Can both apply?

Often, because they serve each other. A front group needs a crowd behind it to look like a movement, and an astroturf campaign needs an organization to give it a name and a spokesperson. The combination is the standard product of the public affairs industry. The two questions to ask are separate, though: are these voices real, and is this organization what it says it is.