We know Spotlight will connect to Apple.com and its subsidiary websites (ibook, etc). Apple uses this information and share it with its partners to improve search results and better target you in the future.
Something you may not know, even by reading the privacy policy or license, SpotlightNetHelper will connect directly to (assets.rfm.) RubiconProject (.com) (as a resolved or unresolved domain). Little Snitch caught an outgoing attempt to RubiconProject (the advertisement organization).
/System/Library/PrivateFrameworks/ParsecUI.framework/Versions/A/Support/SpotlightNetHelper.app
Something you may not know, even by reading the privacy policy or license, SpotlightNetHelper will connect directly to (assets.rfm.) RubiconProject (.com) (as a resolved or unresolved domain). Little Snitch caught an outgoing attempt to RubiconProject (the advertisement organization).
/System/Library/PrivateFrameworks/ParsecUI.framework/Versions/A/Support/SpotlightNetHelper.app