Google seems to be very dedicated to this blog and is updating the Google Online Security Blog on a regular basis with some high quality material.
When I made my first post about this the blog was new and didn't have much. Things have changed since then.
Google has launched the Safe Browsing API. It make it possible to download Google's lists of suspected phishing and malware URLs. This will give you access to the blacklists used in products such as Firefox and Google Desktop. There is a blog post about this new API.
I think all of us have an interest in online security. This is a very helpful blog to keep an eye on. Here is the link again
Google Online Security Blog