Can Sponsored Links be trusted?
Can search results Sponsored Links be trusted? ... not always and a lot depends on who you use for searching. A prime example is to search for the term "antispyware" a very common subject, but the "Sponsored" results can be quite different.
IE7 Live Search on page 2 shows "Winantispyware" ... oh my! 
Or search on Yahoo for the same term and on page 2 you get "Winantiviruspro" which is the same company. So what do you get from Google? Kudos to Google for not allowing these guys to purchase a Sponsored Link and in fact if you try to click a link for Winantispyware you get a Google/StopBadware Warning.
So who is Winantispyware? ... here are some interesting comments
Rogue/Suspect Anti-Spyware Products & Web Sites
WinAntiSpyware 2006, winantispyware.com winsoftware.com softwareprofit.com, aggressive, deceptive advertising (1, 2, 3); same company as WinAntiSpy 2005
Webroot SpySweeper: WinFixer/WinAntiSpyware may be installed by a direct download but may install via a Trojan Horse or popup advertisement.
SunBelt CounterSpy: WinAntiSpyware is a rogue antis-pyware product which pesters users with scareware tactics to purchase the product.
StopBadware Report | Symantec Detection | Tenbril SpyCatcher | PcTools | McAfee SiteAdvisor
It's time for Microsoft and Yahoo to get their act together and stop allowing these type products to purchase Sponsored Links ... it doesn't always have to be about the $$$ ... sometimes it's just the right thing to do!