What, I wonder, is the difference between social networks, and old school political machines running on non-digital social networks, or mass media networks and

What, I wonder, is the difference between social networks, and old school political machines running on non-digital social networks, or mass media networks and channels, or even conventional groundwork campaign techniques. Does a organizing with members of key organizations count as biasing a community. How about a campaign sign placed at a strategic intersection? Or oft used last minute mudslinging postcards. For that matter what is the difference between biasing a voter, and convincing a voter to vote (maybe in the papers case on team-dynamics instead of issues, but voters often decide their votes not on direct issues...). I fully believe though that there are techniques, accessible by money, which yield more efficient results of voter persuasions than other techniques - but those tools are not limited to social media.