Google and Doubleclick merger

If Google.com and Doubleclick.com are allowed to merge together, they will hold 80% of the advertising on the internet as their own. Companies such as Microsoft and Yahoo are extremely opposed to this possible merger, but I think that is mostly due to the fact that they missed out on getting doubleclick.com for themselves. Those companies that oppose the merger are making it a point to bring doubleclick.com's "technique" into the eyes of the public and the lawmakers in order to prevent the two companies from being able to merge together. Doubleclick.com uses IP addresses to build user profiles that use cookies to show where on the web and what sites users cisit, so that they can narrow down their advertising to be user specific and this is where much of the controversy is. Using cookies to track users is treading a thin line between spyware and good business. I've noticed while browsing the web, that some sites allready tend to do some "tracking" in order to display advertisements that are more prone to be clicked by a specific user. On Myspace.com, there is a section of "sponsered links" that for me, are always related to Volkswagens. While I've never actually clicked any of those links, which means their selective advertising isn't totally effective, I know understand what they are trying to do. Having personal information tracked and stored, without my knowledge, does seem like it should be a bit illegal, so it might be a good idea for lawmakers to put a stop to the google and doubleclick merge, before it becomes the largest internet advertising firm and before they have more personal information stored on computer users than anyone else.