MS
I see that they put as much thought into who is allowed to advertise as they do in making a stable operating system.
Search engines from Microsoft and Yahoo! Have once again been caught displaying ads that direct users to malicious content, some that infects them with malware that's hard to detect and get rid of, researchers said. Queries such as “FireFox Download,” “Download Skype,” and “Download Adobe Player” typed into the sites returned …
Irrelevant. Using Linux (and Bing) will lead you to the same malicious code.
But that's not was being discussed here: It's that the search engines return known malicious code.
The fact you can't actually execute the stuff on your Lunux box is irrelevant by this stage.
"Try also to search for "microsoft security essentials" on Bing using IE. The first two links are malware sites. If you use Firefox it behaves differently"
I tried it on both IE and Firefox, and the only difference was introduced by Ad Block Plus. Without Ad Block Plus Firefox also showed same site adds as IE.
There are a few that I doubt are legit (a bit of Google search on the names makes them very likely to be malware site).