US fans work hard to save the cancelled show.

In the few weeks since the announcement of its demise, fans in the US have raised over $23,000. So far they've used the money to buy ads in industry newspapers Daily Variety and The Hollywood Reporter.

The ads are an open letter to execs at the Warner Brothers Network imploring them to bring the show back.

The fan group has even hired a truck with a billboard on its back - which sports the slogan, "We'll follow Angel to Hell... or another network."

The truck has been hired to drive past the Warner Brothers studio in Los Angeles as well as various media outlets including the offices of UPN and its parent company, Paramount, HBO, and Fox.

Fans of the show have contributed money to the cause via a Web site, www.savingangel.org.

Angel's fifth and final season concludes in the US in May.