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I looked in Open Site Explorer, and your backlinks don't look very natural. Generally you'd have a lot of backlinks that include the name of your site or your URL. The most powerful backlinks I'm seeing to your site have anchor text that doesn't look like someone would naturally select it without being given a strong hint to use "Book UK Hotels with Big Discounts" on several different sites. Especially when those sites have nothing to do with your site. I suggest you go through your backlinks and stop with any attempts to build more of ones like the following: http://dtmracedriver.info/2012/03/01/attempting-to-get-the-most-effective-vehicle-rentals-offers-in-united-kingdom-then-commence-employing-the-compare-car-rentals-in-uk/ http://cupcakecostume.info/2012/03/05/compare-hotel-prices-will-help-anyone-whos-likely-for-any-take-a-look-at-within-the-united-kingdom/ http://students.expression.edu/segoviaandres/2011/06/17/captain-america-the-first-avenger-video-game/