There’s a great big beer festival happening in Denver, Colorado this weekend. The Great American Beer Festival opened its doors on Thursday for the beginning of a 4 day beer extravaganza. Somewhere around 20,000 people will attend this event and a good time will be had by all (well..most). Exciting beer activities will abound.On Friday (the 25th), there was another exciting little beer activity happening in England and Ireland. This one aimed directly at charity. A small group of English/Welsh/Scottish and Irish beer enthusiasts decided charity can start anywhere, even at the bottom of a glass. An absolutely fantastic idea that was the brainchild of Steven Bentall (@BeerOClockShow) and Phil Hardy…