For a year now, everyone's asked, how much is that YouTube in the window? Pick a number, and someone's said the world's biggest video sharing site is worth that much. CNET cried $1 billion today, while TechCrunch called out $2 billion on Tuesday.

We drew up a chart of past valuations, aiming to appropriately display the precision of these guesses.

Sources: GigaOM, Gizmodo, New York Post, Techdirt, TechCrunch, CNET at New York Times