Sorry if you got a page of adverts this morning instead of the karooforums site you know and love!
The credit card I have on file with our domain registrar expired, I forgot to renew it then the domain expired! I've sorted it now.
If you could let anyone still seeing a GoDaddy page to run ipconfig /flushdns (if on Windows, Linux users don't have locally cached DNS by default so should be OK) they should be able to see the site again.
Sorry

Thanks Dylan, I was beginning to think it was OpenDNS cybersquatting domains in the DNS cache, I've seen this happen before with other sites, where using a VPN would yield different results.