European Union has formally charged Google of abusing its dominant position on the internet search market. According to a Corliss Tech Review Group report, Google has used its gigantic power as a search engine to redirect internet users from rivals to its own services, which include YouTube and its own social network Google+. Expedia, Microsoft, and TripAdvisor, which are Google's competitors, declare that its way of promoting its own companies above rivals on its search engine stops them from contending on a level playing field. Insiders claim the case could prove just as costly as the EU's decade-long battle with Microsoft, which ultimately cost the company £1.6 billion in fines. If Google fails to rebut any formal charges imposed by Brussels, the commission could impose a huge fine which could exceed £4 billion which is about 10% of Google's most recent annual revenue.