I was on the AVG website and I saw that there is a Linux version for anti-virus. I always thought that Linux does not need anti-virus and the only need for it would be just in case you're somehow connecting to a Windows machine (so as not to infect it). Is this no longer the case? Is it a good idea to have anti-virus on Linux these days?
Is Microsoft's Anti-Malware Service (http://www.microsoft.com/security/pc-security/malware-removal.aspx) useful when running a 3rd party anti-virus, or is it redundant and will it just slow things down?
It seems to me it should be redundant, but given a cursory online search, I can't seem to find an answer. Is it intended to be an anti-virus, or complementary to your anti-virus?