Conversation so far:
What information did Judith Miller refuse to disclose source for?
Judith Miller refused to testify before a federal grand jury investigating a leak naming Valerie Plame as a CIA officer
Did Judith Miller's information about Valerie Plame eventually come out?
For her second grand jury appearance, Judith Miller produced a notebook from a previously undisclosed meeting. Miller's notebook contains the name Valerie Flame [sic].
When was Judith Miller's court appearance?
on October 12, 2005
How was Judith Miller related to the CIA agent Valerie Plame?
While Judith Miller never wrote about Valerie Plame, she was believed to be in possession of evidence relevant to the leak investigation.

Question: How long was she in jail?
Self-contained rewrite: How long was Judith Miller in jail?