Hulu, the online video site that prides itself on its sparse advertising, had the fortunate problem of running out of ad inventory awhile back. Seems one of the solutions has been to sell ads on 404 pages.
The company — a joint venture between NBC and Fox — runs a montage of Home Simpson’s "D’oh!s" on 404s (pages not found), which also carry overlay ads. As Online Video Watch notes, there’s a fine line between annoying and tolerable, and Hulu walks it pretty successfully.
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