Date Google

On September 28, 2004, a search on “podcast” in Google turned up 24 matches. As I write this, the number is 17,000,000.

from Seth Godin's free Who's There? ebook.

Just a thought; Can you use date ranges in Google? I reckon it would be useful for fact checking to be able to limit a Google search to a date range. Would the date range though check the date the item was added to the Google index or the creation date of the item?