Example 1: Thanking sources who recently signed up for the APM network through the online signup, or by filling out a query form for the first time.
Example 2: Thanking people who helped inform a particular show -- in this case The Dinner Party Download.
Example 3: KQED thank you note to sources who recently signed up, that also promotes Source and provides various ways for sources to engage.
Example 4: Thanking people who responded to a specific query, from NHPR.
Example 5: A query-specific thank you note from the Center for Public Integrity that also promotes Source.
Example 6: A message thanking people who joined the PIN in a non-traditional way. In this case, sources played a news game and said they'd join the Public Insight Network.