I don't see how they are doing that, there is absolutely nothing to stop competitors coming in, if they become the most popular then they will appear at the top of the search results, if Google supplied useless search results for the sake of placing their products first they would lose users. And Microsoft's plan backfired when they became complacent and shipped ****ty products, most monopolies where there is little to no entry barriers do not last long if superior products come along.It depends on the position of the company in the market. If they dominate and are not allowing much competition by abusing their position or stifling growth then they get sanctions. Look at Microsoft bundling IE with Windows. No company was able to even enter the browser market. Netscape went under as a result. As I said before, you end up with a bad product when there is no incentive to improve it.