One of the ways to detect suspicious programs on your computer is by running an online virus scan.Although there are a number of online virus scanners like McAfee FreeScan and Trend Micro, most of them take time and consume lot of bandwidth. But recently, I came across NanoScan, which claimed to scan your PC in few seconds.

It initially downloads a small ActiveX file and then starts scanning.I have to admit that not only it does a comprehensive scan but it is also lightning fast