I had negeleted to update wordpress for some time. The result was some iframe expoilts injected into a couple of posts. This resulted in Google reporting me to stopbadware.org. Recent versions of Firefox use data from stopbadware to warn you when you are accessing a site that may contain malware. Also, any search on my site in Google listed me with a warning and prevented linking to my site. Having fixed the issues I then had to contact Google to get myself removed from the bad list. Anyway, normal service resumed!