In February I told you about NanoScan, Panda Software's super-fast, super-small, online malware scanner ("Are You REALLY Protected?"). All of the heavy lifting happens on Panda's servers - you just download a minuscule (200k) module that does the local scanning. It's a great second opinion for those times when you get that sinking feeling your security software may have let something nasty slip through. And now it works in Firefox too, not just Internet Explorer!