As Google has grown, we've not surprisingly faced more questions about our role in the advertising ecosystem and our overall approach to competition. This kind of scrutiny goes with the territory when you are a large company. However, we've always worked hard to ensure that our success is earned the right way -- through technological innovation and great products, rather than by locking in our users or advertisers, or creating artificial barriers to entry.

The European Commission has notified us that it has received complaints from three companies: a UK price comparison site, Foundem, a French legal search engine called, and Microsoft's Ciao! from Bing. While we will be providing feedback and additional information on these complaints, we are confident that our business operates in the interests of users and partners, as well as in line with European competition law.

Given that these complaints will generate interest in the media, we wanted to provide some background to them. First, search. Foundem - a member of an organisation called ICOMP which is funded partly by Microsoft - argues that our algorithms demote their site in our results because they are a vertical search engine and so a direct competitor to Google.'s complaint seems to echo these concerns.

We understand how important rankings can be to websites, especially commercial ones, because a higher ranking typically drives higher volumes of traffic. We are also the first to admit that our search is not perfect, but it's a very hard computer science problem to crack. Imagine having to rank the 272 million possible results for a popular query like the iPod on a 14 by 12 screen computer screen in just a few milliseconds. It's a challenge we face millions of times each day.

Our algorithms aim to rank first what people are most likely to find useful and we have nothing against vertical search sites -- indeed many vertical search engines like, Opodo and Expedia typically rank high in Google's results. For more information on this issue check out our guidelines for webmasters and advertisers, and for an independent analysis of Foundem's ranking issues please read this report by Econsultancy.

Regarding Ciao!, they were a long-time AdSense partner of Google's, with whom we always had a good relationship. However, after Microsoft acquired Ciao! in 2008 (renaming it Ciao! from Bing) we started receiving complaints about our standard terms and conditions. They initially took their case to the German competition authority, but it now has been transferred to Brussels.

Though each case raises slightly different issues, the question they ultimately pose is whether Google is doing anything to choke off competition or hurt our users and partners. This is not the case. We always try to listen carefully if someone has a real concern and we work hard to put our users' interests first and to compete fair and square in the market. We believe our business practices reflect those commitments.