Onling gambling sites Eurobet and Coral have been experiencing ongoing outages since early Monday, shortly after the completion of the Euro 2004 soccer championship and the Wimbledon tennis finals.

Online betting sites have been repeatedly targeted by extortionists employing electronic attacks, including a series of distributed denial of service (DDoS) attacks at the outset of the Euro 2004 event.

Netcraft is monitoring the performance of twenty leading UK Internet Gambling Sites, with dynamically updating graphs available here.