International Business Times – The UK spends £2.3bn ($4bn) on online gambling each year – a growth of 80% since 2008 and predicted to grow by 34% over the next four years. But a report reveals  that online searches for gambling have slumped in the UK. Smartphone gambling apps, on the other hand, have surged in popularity, report bookmakers. The report, published in Gaming Sector Report issue 11 by London-based digital marketing agency Greenlight, focused on game-related searches during a 12-month period on Google. The study found that search engine queries such as “sports betting”,”bingo”,”poker” and “casino” totalled 1.5 million…