Online Privacy

Online advertising companies personalize your web browsing experience by being able to offer more targeted ads on the pages you view. Using a number of tools to determine your interests - your search keywords, browsing history, or even social-networking data - they can place the most relevant ads on the pages you view. Most companies do a great job preventing any personal information from being stored or used in any way, but some people still prefer to opt out of their services and avoid being tracked online through the use of "cookies".

Below you will find a list of online tracking companies.

24/7 Real Media	33Across	aCerno	Acxiom (Relevance-X)
Adara Media	AdBrite	AdBuyer	AdChemy
adConductor	Adconion	AdGear	Adify Media
AdInterax	AdJuggler	AdMeld	AdMotion
adnetik	Adnologies	Adperium	Adroit Interactive
AdShuffle	AdSpeed	AdTech	Advertising.com (AOL)
AggregateKnowledge	AlmondNet	AppNexus	Atlas Technology (Microsoft)
BeenCounter	Bizo	BlueKai	BlueStreak
brand.net	BrightRoll	Brilig	BTBuckets
BuySight	BuzzLogic	BV! Media	Casale Media
Choice Stream	CPX Interactive	Crimson Tangerine	Criteo
Dapper	DataLogix	DataXu	Datran Media
Demdex	Dotomi	Double Verify	echoSearch
Efficient Frontier	eXelate Media	Facilitate Digital	FetchBack
Freewheel.tv	Full Circle Studies	Google (DoubleClick)	Groupon
i-Behavior	Infectious Media	interCLICK	Invite Media
Lijit	Lotame	Lucid Media	Magnetic
Maxpoint Interactive	Media6degrees	MediaMath	MediaMind
Mediaplex	Microsoft Advertising	Mindset Media	Navegg
Netmining	NexTag	OpenX	Outbrain
PeerSet	PointRoll	PrecisionClick	PrecisionClick Ads
PredictAd	Proximic	Pubmatic	Quantcast
QuinStreet	Quisma	RapLeaf	Red Aril
Reedge	richrelevance	Rocket Fuel	Safecount
Smart AdServer	Specific Media LLC	SpongeCell Ads	Tatto Media
TellApart	Traffic Marketplace	Travel Ad Network	Tribal Fusion
Triggit	Tumri	Turn	Undertone Networks
ValueClick Media	Vibrant Media	Vindico	Wall Street on Demand
[x+1]	XGraph	Xtend Media	YuMe