Here's a New Scientist story about an interesting signal seen by the Arecibo Radio Observatory, and detected by people running SETI@Home screensavers.
The signal is the only one observed in February 2003 of the many selected as possible candidates which didn't just disappear.
The signal itself is a bit odd, and may not be carrying much in the way of information. The signal is seen at atbout 1420 MHz, which is also the neutral hydrogen frequency. Observations of this signal seem a little odd, and the signal drifts in frequnecy a bit.
If it is not a hoax, or peculiarty of the Arecibo equipment, it would take a new or extreme natural phenomenon to explain the signal.
On the down side, there is no obvious star associated with the location of the signal [between pisces and aries].
Forming opinions as we speak